【判断题】
Y于HTTP/1.1协议响应消息,“1xx”类型消息表示“请求已被服务器接收,继续处理”。
A. 对
B. 错
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【判断题】
Y于HTTP/1.1协议响应消息,“200”表示“服务器已接受请求,但尚未处理”。
A. 对
B. 错
【判断题】
Y于HTTP/1.1协议响应消息,“505”表示HTTP版本不支持。
A. 对
B. 错
【判断题】
Y于HTTP协议,URI表示统一请求标识符。
A. 对
B. 错
【判断题】
Y于传输设备,在未加电时,接触单板可以不用带防静电手腕。
A. 对
B. 错
【判断题】
Y于光板而言,其接收光功率必须在一定的范围之内。
A. 对
B. 错
【判断题】
Y于双绞线来说,随着线缆长度的增加,信号衰减也增加。
A. 对
B. 错
【判断题】
阿朗设备OLT的PON口上行带宽TC层丢弃的GEM帧率丢帧率门值为10E-4。
A. 对
B. 错
【判断题】
安装设备布放电缆时网线和电源线应分开布放,建议分别从设备两侧布放。
A. 对
B. 错
【判断题】
按各信道间的波长间隔的不同,WDM可分为密集波分复用和稀疏波分复用。
A. 对
B. 错
【判断题】
拔光板时,规范要求先拔纤后拔板。
A. 对
B. 错
【判断题】
保持是当丢失所有参考源时,时钟设备应具备维持优良输出的能力。
A. 对
B. 错
【判断题】
波分系统使用G.654光纤能够达到最佳的传输效果。
A. 对
B. 错
【判断题】
波分系统调试时,主要是要保证收端功率平坦度和信噪比平坦度。
A. 对
B. 错
【判断题】
波长转换器(OUT)的作用是将非规范的波长转换为IT U-T规定的标准波长。
A. 对
B. 错
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不仅是固体会产生静电,液体、粉末、流体也会产生静电。
A. 对
B. 错
【判断题】
不同厂家的V35协议转换器Y接时要保证时隙占用情况一致
A. 对
B. 错
【判断题】
布放上联尾纤时,应尽量减少拐弯处,绑扎应松紧适度,不得过紧。
A. 对
B. 错
【判断题】
布放室内光缆、光纤时,暗管的截面利用率应为25%-30%。预埋线槽宜采用金属线槽,线槽的截面利用率不应超过40%。
A. 对
B. 错
【判断题】
布放线缆时,接地线与电源线不得并行。
A. 对
B. 错
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采集周期内接收丢弃包总数统计是指系统启动时刻到查询统计操作时刻,Y系统采集周期内接收N误包总数的统计。
A. 对
B. 错
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采用指针调整技术是SDH复用方法的一个重要特点。
A. 对
B. 错
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插拔光板不应该带纤插拔。
A. 对
B. 错
【判断题】
插拔光纤动作利索,插接稳固、到底,尾纤空置时需套上保护帽;
A. 对
B. 错
【判断题】
插板时若感觉有阻碍不要强行插入,应调整单板位置后再试;观察插头与插座完全配合后再扣下扳手,至单板完全插入,并拧紧锁定螺钉;
A. 对
B. 错
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查询通达目的网络的路由信息的命令是netstat
A. 对
B. 错
【判断题】
查询下行ploam日志时使用:”#ont/system/log>show ploam”
A. 对
B. 错
【判断题】
掺铒光纤放大器件,具有增益高、输出功率大、工作光学带宽较宽、与偏振无关、噪声指数较低、放大特性与系统比特率和数据格式无关特点。()
A. 对
B. 错
【判断题】
常用的自愈环有:2纤单向通道倒换环、2纤单向复用段倒换环、4纤双向复用段倒换环、2纤双向复用段倒换环。
A. 对
B. 错
【判断题】
常用故障判断方法只有环回、替换两种方法。
A. 对
B. 错
【判断题】
传输同等功率的有功功率,其功率因数越高,则传输电流越大。
A. 对
B. 错
【判断题】
传输网络结构分为接入,汇聚,骨干三层。
A. 对
B. 错
【判断题】
传输专业负责专线业务端到端的调侧及开通。
A. 对
B. 错
【判断题】
传送网设备接地只接工作地。
A. 对
B. 错
【判断题】
传送网是指在不同地点的各点之间完成转移信息传递功能的一种网络,传送网也能传递各种网络控制信息。
A. 对
B. 错
【判断题】
传送网中的电路层和通道层的关系是客户和服务者的关系。
A. 对
B. 错
【判断题】
串行数据通信的方向性结构有三种,即单工、 半双工 和 全双工
A. 对
B. 错
【判断题】
从网络的层次结构考虑,一个IP地址必须指明两点:1、属于哪个网络;2、是这个网络中的哪个主机。
A. 对
B. 错
【判断题】
从网络一端某台PC设备无法ping通远端的另一台PC,则说明二者之间建立TCP连接的相应路由信息仍然没有建立。
A. 对
B. 错
【判断题】
大客户系统可以发送短信
A. 对
B. 错
【判断题】
大型重点项目和省级重点客户的开通时限根据集团客户与客户商定的具体开通时限执行。
A. 对
B. 错
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They say that pride comes before a fall. In the case of both Napoleon and Hitler, the many victories they enjoyed led them to believe that anything was possible, that nothing could stand in their way. Russia's icy defender was to prove them wrong.
【简答题】
In 1812, Napoleon Bonaparte, Emperor of the French, led his Grand Army into Russia. He was prepared for the fierce resistance of the Russian people defending their homeland. He was prepared for the long march across Russian soil to Moscow, the capital city. But he was not prepared for the devastating enemy that met him in Moscow -- the raw, bitter, bleak Russian winter.
【简答题】
In 1941, Adolf Hitler, leader of Nazi Germany, launched an attack against the Soviet Union, as Russia then was called. Hitler's military might was unequaled. His war machine had mowed down resistance in most of Europe. Hitler expected a short campaign but, like Napoleon before him, was taught a painful lesson. The Russian winter again came to the aid of the Soviet soldiers.
【简答题】
In the spring of 1812, Napoleon assembled an army of six hundred thousand men on the borders of Russia. The soldiers were well trained, efficient, and well equipped. This military force was called the Grand Army. Napoleon, confident of a quick victory, predicted the conquest of Russia in five weeks.
【简答题】
Shortly afterwards, Napoleon's army crossed the Neman River into Russia. The quick, decisive victory that Napoleon expected never happened. To his surprise, the Russians refused to stand and fight. Instead, they retreated eastward, burning their crops and homes as they went. The Grand Army followed, but its advance march soon became bogged down by slow-moving supply lines.
【简答题】
In August, the French and Russian armies engaged at Smolensk, in a battle that left over ten thousand dead on each side. Yet, the Russians were again able to retreat farther into Russian territory. Napoleon had won no decisive victory. He was now faced with a crucial decision. Should he continue to pursue the Russian army? Or should he keep his army in Smolensk for the approaching winter?
【简答题】
Napoleon took the gamble of pressing on to Moscow, 448 kilometers away. On September 7, 1812, the French and Russian armies met in fierce battle at Borodino, 112 kilometers west of Moscow. By nightfall, thirty thousand French and forty-four thousand Russians lay dead or wounded on the battlefield.
【简答题】
Again, the Russian army retreated to safety. Napoleon had a clear path to Moscow, but the occupation of the city became an empty victory. The Russians fled their capital. Soon after the French arrived, a raging fire destroyed two-thirds of the city. Napoleon offered a truce to Alexander I, but the Russian czar knew he could bide his time: "We shall let the Russian winter fight the war for us."
【简答题】
Napoleon soon realized he could not feed, clothe, and quarter his army in Moscow during the winter. In October 1812, he ordered his Grand Army to retreat from Moscow.
【简答题】
The French retreat turned into a nightmare. From fields and forests, the Russians launched hit-and-run attacks on the French. A short distance from Moscow, the temperature had already dropped to minus 4 degrees Celsius. On November 3, the winter's first snow came. Exhausted horses fell dead in their tracks. Cannon became stuck in the snow. Equipment had to be burned for fuel. Soldiers took ill and froze to death. The French soldiers dragged on, leaving the dead along every mile.
【简答题】
As the Russian army was gathering its strength, the French had to flee Russia to avoid certain defeat. At the Berezina River, the Russians nearly trapped the retreating French by burning the bridges over the swollen river. But Napoleon, by a stroke of luck, was able to build two new bridges. Thousands of French soldiers escaped, but at the cost of fifty thousand dead. Once across the Berezina, the tattered survivors limped toward Vilna.
【简答题】
Of the six hundred thousand soldiers Napoleon had led into Russia, less than one hundred thousand came back. The weakened French army continued its retreat westward across Europe. Soon, Britain, Austria, Russia, and Prussia formed a powerful alliance and attacked these stragglers. In March 1814, Paris was captured. Napoleon abdicated and went into exile, his empire at an end.
【简答题】
By early 1941, Adolf Hitler, leader of Nazi Germany, had seized control of most of Europe. To the east of Hitler's German empire was the Soviet Union. On June 22, 1941, without a declaration of war, Hitler began an invasion of the Soviet Union that was the largest military land campaign in history. Confident of a quick victory, Hitler expected the campaign to last no longer than three months. He planned to use the blitzkrieg, or "lightning war," tactics that had defeated the rest of Europe. The invasion had three broad thrusts: against Leningrad and Moscow and through the Ukraine.
【简答题】
Caught off guard by the invasion, Soviet leader Joseph Stalin instructed the Russian people to "scorch the earth" in front of the German invaders. Farms and factories were burned, destroyed, or rendered useless. During the first ten weeks of the invasion, the Germans pushed the front eastward, and the Russians suffered more than a million casualties.
【简答题】
In the north, the Germans closed in on Leningrad. Despite great suffering, however, the people of Leningrad refused to surrender. As the battle of Leningrad dragged on into winter, the city's situation became desperate. As food ran out, people died from hunger and disease. By the middle of the winter of 1941-1942, nearly four thousand people starved to death every day. Close to one million people died as a result of the siege.
【简答题】
In the center of Russia, Hitler's goal was the capture of Moscow. Because the Germans had anticipated a quick victory, they had made no plans for winter supplies. October arrived with heavy rains. "General Mud" slowed down the movement of the Germans' lightning attack.
【简答题】
As Hitler's armies drew closer and closer to Moscow, an early, severe winter settled over the Soviet Union, the harshest in years. Temperatures dropped to minus 48 degrees Celsius. Heavy snows fell. The German soldiers, completely unprepared for the Russian winter, froze in their light summer uniforms. The German tanks lay buried in the heavy snowbanks. The Russian winter brought the German offensive to a halt.
【简答题】
By the summer of 1942, Hitler had launched two new offensives. In the south, the Germans captured Sevastopol. Hitler then pushed east to Stalingrad, a great industrial city that stretched for 48 kilometers along the Volga River. Despite great suffering, Soviet defenders refused to give up Stalingrad.
【简答题】
In November 1942, the Russians launched a counterattack. With little or no shelter from the winter cold in and around Stalingrad, German troops were further weakened by a lack of food and supplies. Not until January 1943 did the Germans give up their siege. Of the three hundred thousand Germans attacking Stalingrad, only ninety thousand starving soldiers were left. The loss of the battle for Stalingrad finally turned the tide against Hitler. The German victories were over, thanks in part to the Russian winter.
【简答题】
During 1943 and 1944, the Soviet armies pushed the German front back toward the west. In the north, the Red Army broke the three-year siege of Leningrad with a surprise attack on January 15, 1944. Within two weeks, the heroic survivors of Leningrad saw their invaders depart. By March 1944, the Ukraine farming region was again in Soviet hands. On May 9, 1944, Sevastopol was liberated from the Germans. The Russians were now heading for Berlin.
【简答题】
For Hitler, the invasion of the Soviet Union had turned into a military disaster. For the Russian people, it brought unspeakable suffering. The total Soviet dead in World War II reached almost 23 million.
【简答题】
The elements of nature must be reckoned with in any military campaign. Napoleon and Hitler both underestimated the severity of the Russian winter. Snow, ice, and freezing temperatures took their toll on both invading armies. For the Russian people, the winter was an icy defender.
【单选题】
________不属于鼠类及体表寄生虫携带的病原体。___
A. 鼠疫耶尔森菌
B. 汉坦病毒
C. 黄病毒属病毒
D. 致病性钩端螺旋体
【单选题】
病媒生物死体样本运送,如果在24h内不能到达实验室的,运送过程中箱内温度应保持在_____。___
A. 4℃以下
B. 0℃以下
C. -20℃以下
D. 4℃以上
【单选题】
病媒生物死体样本运送,如果在装箱后4h内能够到达实验室的,运送过程中箱内温度应保持在______。___
A. 4℃以下
B. 0℃以下
C. -20℃以下
D. 4℃以上
【单选题】
病媒生物的死体样本运送,如果4h-24h内能到达实验室的,应将样品置于-30℃冷冻后再送样,运送过程中箱内温度应保持在________。___
A. 4℃以下
B. 0℃以下
C. -20℃以下
D. 4℃以上
【单选题】
恰加斯病也称为美洲锥虫病,其重要的传播媒介是________。___
A. 采采蝇
B. 厩螫蝇
C. 锥蝽
D. 埃及伊蚊
【单选题】
_______是黑热病内脏利什曼病的主要传播媒介。___
A. 锥蝽
B. 白蛉
C. 蠓
D. 蚋
【单选题】
对于用作虫媒病毒分离或检测的蚊类标本,现场采集后应采用_______方式处置和运送。___
A. 杀虫剂熏杀+常温运输
B. 等蚊虫自然死亡+常温运输
C. 冷冻处死+常温运输
D. 冷冻处死+冷冻状态运输
【单选题】
_______不适用于入出境集装箱携带蝇、蚊、蠓的采集。___
A. 挥网法
B. 电动吸蚊器法
C. 直接捡取法
D. 二氧化碳诱蚊灯法
【单选题】
入境航空器应在______开始病媒生物监测。___
A. 卸货完成后
B. 抵达后
C. 等航空公司通知
D. 发现病媒生物时
【单选题】
进行集装箱携带输入性病媒生物监测时应准备的个人防护用品包括______。___
A. 乳胶手套、防护服
B. 防毒面具
C. 自给式呼吸器
D. 化学防护服
【单选题】
若要对采集到的输入性鼠类进行携带的病毒进行检测,取得其内脏器官的保存温度是_____。___
A. -80℃或以下
B. 0℃
C. 常温
D. 4℃-8℃
【单选题】
截获输入性活鼠或来自鼠疫流行区死鼠及经总署专家组确认和复核属于全国口岸首次截获的病媒生物应在______报告总署。___
A. 2小时之内
B. 8小时之内
C. 12小时之内
D. 24小时之内
【单选题】
入境船舶的蚊类和蝇类等双翅目病媒生物监测调查应白天在检疫锚地停泊期间进行,锚位距陆地距离不少于______,或在船舶靠泊后_____内进行。___
A. 1000 m;1h
B. 800 m、2 h
C. 400 m、4 h
D. 100 m、24 h
【单选题】
开展入境船舶输入性病媒生物监测工作中,在采集并保存病媒生物时由________陪同人员确认。___
A. 旅行社
B. 船方
C. 代理公司
D. 海事部门
【单选题】
在国境口岸或者交通工具上发现______有反常死亡或者死因不明的,国境口岸有关单位或者交通工具的负责人,必须立即向卫生检疫机关报告,迅速查明原因,实施卫生处理。___
A. 蚊类
B. 鼠类
C. 蝇类
D. 蜚蠊
【单选题】
采用鼠夹法监测鼠密度,应连续布放______。___
A. 2天
B. 3天
C. 4天
D. 5天