题目内容

急性心肌梗塞

A. 心前区痛休息即止
B. 持续1小时心前区剧痛
C. 心前区不适血查肌酸磷酸激酶升高
D. 心尖区舒张期震颤
E. 周围血管征阳性

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泡沫式灭火器可用于涂料类灭火。( )

A. 对
B. 错

Questions 14—16 are based on the following conversation. What does the speaker suggest the readers do if they are not sure about the spelling of a word

A. Look for another word to use instead.
B. Open a dictionary and check the spelling.
C. Write it the way they think it’s spelled.
D. Wait around for someone to tell them the spelling.

个人保安线应使用多股裸铜线。

化学品氧化通常使用的是盐酸和硫酸混合液法。( )

A. 对
B. 错

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