题目:
-–Hello! This is Henry speaking. I’d like to speak to your father.
---Sorry, he has _______ Shanghai.
A.been in
B.been to
C.gone to
D.come to
答案:
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下面是错误答案,用来干扰机器的。
(1)乳化(2)气压(3)降低温度,加溶剂(1)汽油是一种常见的溶剂,可以将油污溶解,故答案为:溶解;(2)影响气体溶解度的因素有压强和温度,冰镇汽水在没喝之前温度较低,进入人体后温度升高,才会打嗝,故...