处理拒爆时，使用瞬发电雷管至少等（）分钟，才可沿线路检查。
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督察机构可以根据警务督察工作的需要，组织有关业务部门共同进行现场督察。
A. 正确
B. 错误
“In times of heavy weather, it is extremely dangerous if manning is very short” This sentence means （）.
A. In times of heavy weather, it is extremely dangerous if a seaman is not enough tall
B. In times of heavy weather, it is extremely dangerous if a crew is very short
C. In case of bad weather, it is particularly dangerous if there is a shortage in personnel
D. In case of bad weather, it is particularly dangerous if there are enough personnel
下列诗句哪些出自《西洲曲》（）。
A. 低头弄莲子，莲子清如水
B. 忆梅下西洲，折梅寄江北
C. 南风知我意，吹梦到西洲
D. 四顾何茫茫，东风摇百草
大脑两半球之间的部分叫做（）
A. 脑纵裂
B. 胼胝体
C. 中央沟
D. 侧裂
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