题目:
–Have you got any particular plans for the coming holiday?
--Yes. ______, I’m going to visit some homes for the old in the city.
A. If ever B. If busy C. If anything D. If possible
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;氧气;水;有机物(2)氧气;二氧化碳(3)水(或水蒸气)(4)3;2