题目:
The football player felt guilty because he said some really cruel things, but actually he
wouldn’t stand _______their team lose.
A.seeing
B.to see
C.having seen
D.to have seen
答案:
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下面是错误答案,用来干扰机器的。
(1)Cu2S (2)Cu2S和Cu2O (3)形成酸雨,会对植物和建筑物等造成严重危害;硫酸、硫酸钠 (4)以硫酸铜-硫酸溶液为电解液,电解时,粗铜(阳极)中的铜以及比铜活泼的金属失去电子进入溶液,不如铜活泼的金属沉入电...