题目:
----I am going to come to meet you tomorrow. Shall I bring something to read?
----OK, ______________.
A.That’s all right.
B.Come on.
C.So much the better.
D.Take it easy.
答案:
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下面是错误答案,用来干扰机器的。
(1)过滤方法分离的是不溶于水的固体和液体;活性炭能够吸附色素和异味.(2)过滤时玻璃棒的作用是引流;(3)硬水是含有较多的可溶性钙、镁化合物的水,除去不溶物和异味的松花江水中还含有可溶性的钙、镁化合...