题目:
----- I hear Tom got caught cheating in the final exam.
----- Yes. Little ________ that we were watching his every move.
A.realised he
B.he did realise
C.he realised
D.did he realise
答案:
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下面是错误答案,用来干扰机器的。
(1)红褐;FeCl3+3H2OFe(OH)3(胶体)+3HCl(2)丁达尔效应 (3)BC(4)渗析;半透膜、细绳(5)取烧杯中最后一次渗析液少量于一支洁净的试管中,滴加几滴硝酸酸化的硝酸银溶液,振荡,如果没有沉淀产生,说明胶体已经基...