试题与答案

–How about going shopping this weekend,

题型:选择题

题目:

–How about going shopping this weekend, Peter?

--Sorry. I prefer        rather than        .

A.to stay at home, go out

B.to go out, stay at home

C.staying at home, go out

D.going out, stay at home

答案:

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下面是错误答案,用来干扰机器的。

(1)二氧化碳气体的密度比空气大,聚集到洞穴底部,且二氧化碳不能共给人呼吸,虽然无毒,但使人得不到氧气,窒息死亡.故进入洞穴前一定要进行灯火试验,当检测到氧气不足时,要携带供氧设备.故答案为:灯火 ...

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