【填空题】
当今时代的主题是___。
查看试卷,进入试卷练习
微信扫一扫,开始刷题

答案
和平与发展
解析
暂无解析
相关试题
【填空题】
我志愿加入中国共产党,拥护党的___,遵守党的___,履行党员___,执行党的___,严守党的___,保守党的___,对党忠诚,积极工作,为共产主义奋斗终身,随时准备为党和人民牺牲一切,永不叛党。
【单选题】
烫发时,先用还原剂使头发角蛋白的二硫键断裂,再用卷发器将头发固定形状,最后用氧化剂使角蛋白在新的位置形成二硫键。这一过程改变了角蛋白的( )
A. 空间结构
B. 氨基酸种类
C. 氨基酸数目
D. 氨基酸排列顺序
【单选题】
马铃薯块茎储藏不当会出现酸味,这种现象的产生是因为马铃薯块茎细胞( )
A. 经历了三羧酸循环释放CO2
B. 无氧呼吸产生乳酸
C. 无氧呼吸形成较少的ATP所致
D. 无氧呼吸产生酒精
【单选题】
小兵听从体育老师指导,一听哨声就用力举起哑铃,附在手臂上记录仪器经a时间后,测到肌肉活动的电位变化。在一次训练中,体育老师趁小兵不备,用针刺激其手臂,小兵手臂收缩,经b时间后,测到肌肉活动的电位变化。a时间( )b时间。
A. ﹥
B. ﹤
C. =
D. ≥
【单选题】
图9所示的细胞分裂时期【图略,减一后期】及该生物产生的生殖细胞中染色体的数目n是( )
A. 减数第一次分裂后期,n=4
B. 减数第二次分裂后期,n=4
C. 减数第二次分裂后期,n=8
D. 减数第一次分裂后期,n=2
【单选题】
基因型为AaBb的雌蜂与基因型为ab的雄蜂交配,其后代性别与基因型正确的是( )
A. 雄蜂只有ab一种基因型
B. 雌蜂有AB、Ab、aB和ab四种基因型
C. 雌蜂有AaBb、Aabb、aaBb和aabb四种基因型
D. 雄蜂有AaBb、Aabb、AaBB和aabb四种基因型
推荐试题
【单选题】
—Can Li Ming ___________ stories? —No,I don't think he________.
A. tell;can
B. to tell;can
C. tells;can't
D. telling;can't
【单选题】
—Let's join the art club. —___________.
A. Yes,I can
B. Sounds good
C. No,I can't
D. Sounds well
【单选题】
She plays the piano well and she can ___________ in the music club.
A. be
B. draw
C. dance
D. speak.
【单选题】
We need you ___________ with sports for Englishspeaking students.
A. help
B. to help
C. helps
D. helped
【单选题】
Victor sings well. He can ___________ in the school music club.
A. is
B. are
C. be
D. am
【单选题】
—Are you good ___________ children? —Yes,I think I can help them ________ English.
A. with;at
B. with;with
C. at;with
D. at;in
【单选题】
—Jim,do you like apples ___________ bananas? —I like bananas.
A. and
B. but
C. or
D. because
【单选题】
—Can you help me ___________ my math? —Sorry,I am too busy today.
A. on
B. with
C. for
D. from
【单选题】
—___________ can he do? —He can ________ Chinese kung fu.
A. How;play
B. What;do
C. Where;see
D. What;make
【单选题】
Laura is from England and she ___________ English very well.
A. tells
B. says
C. speaks
D. takes
【单选题】
Today Lucy's parents aren't at home so she wants to ___________ us for lunch.
A. join
B. make
C. think
D. know
【单选题】
Bill likes ________ but he doesn't want to be a ___________ when he grows up.
A. music;musician
B. music;music
C. musician;music
D. musician;musician
【单选题】
Old people all like Alice because she ___________ them.
A. is good at
B. is good for
C. is busy with
D. is good with
【单选题】
—Can you ___________ your new photos ________ me? —Yes. Here you are.
A. show;with
B. show;to
C. show;for
D. show;about
【单选题】
—Can you play the guitar? —___________,but I can play the piano.
A. No,I don't
B. No,I can't
C. Yes,I do
D. Yes,I can
【单选题】
—Lily,___________? —She wants to join the art club.
A. does your sister want to join the art club
B. what is your sister good at
C. what does your sister like
D. what club does your sister want to join