题目:
You have to take some necessities such as ropes, a flash, boots, ______ you may get lost in the mountain if going hiking.
A.so that
B.in order that
C.now that
D.in case
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(或者水蒸气)