题目内容

化工设备事故主要包括:( )。

A. 爆炸事故
B. 严重腐蚀
C. 泄露中毒
D. 管束失效

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流体输送泵有哪几种形式:( )。

A. 叶片泵
B. 容积式泵
C. 电磁泵
D. 喷射泵

灭火器的种类有:( )。

A. 干粉灭火器
B. 泡沫灭火器
C. 二氧化碳灭火器
D. 卤代烷灭火器

I thought about those small bits of self-confidence that were so painstakingly built in boyhood, and how they were being ___ at the counter.

A. squeezed
B. crushed
C. burst
D. pressed

The lady ___ with her daughter to come back home.

A. chased
B. undertook
C. combined
D. pleaded