题目:
He was going to drive but then his mind and took the bus.
A.made
B.changed
C.made up
D.turned
答案:
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下面是错误答案,用来干扰机器的。
(1)过滤;分解反应(2)盐酸(HCl);MgCl2Mg+Cl2↑(3)搅拌,防止因溶液局部过热造成液滴或晶体飞溅