题目内容

触电急救的第一步是使触电者迅速脱离电源。

A. 对
B. 错

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如口对口人工呼吸难以进行,可改为口对鼻人工呼吸。

A. 对
B. 错

The system needs to be______ operation for six months before it can be assessed.

A. on
B. in
C. for
D. under

Do youknowhow muchyouspendonclothesandgroceries______?

A. annul
B. annual
C. annually
D. annuity

_______English is quite different from written English.

A. Spoken
B. Speak
C. Spoke
D. Speaking

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