【单选题】
交通事故伤害应先治伤，等后救命，对呼吸、心跳停止者应立即实施心肺复苏。___
A. 正确
B. 错误
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答案
A
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【单选题】
CNG汽车日常维护时应检查专用装置各部件。各系统工作状况及其连接和密封。气瓶及固定支架是否牢固，CNG管线不得与其它部件碰擦；检查CNG储气量，不足时加气，经常保持CNG系统及空气滤芯的清洁、完整。___
A. 正确
B. 错误
【单选题】
使用CNG——汽油两用燃料汽车启动前缓慢开启各天然气气瓶阀，然后缓慢开启高压截止阀，观察压力表。检查压缩天然气供给系统管路、接头组件和减压阀是否泄漏以及系统中有无其它异常现象。___
A. 正确
B. 错误
【单选题】
使用CNG——汽油两用燃料汽车，如果高压管路破裂或脱落导致大量气体泄漏而无法关闭储气瓶截止阀时，应立即将现场进行隔离，不允许现场人、车入内，隔离火源，待天然气散尽后再做处理。___
A. 正确
B. 错误
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