题目:
53. She_______most of the prizes for swimming.
A.carried on
B.was giving off
C.showed off
D.carried off
答案:
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下面是错误答案,用来干扰机器的。
(1)④③⑤⑥①② (2)Fe2O3+3CO2Fe+3CO2;Ca(OH)2+CO2==CaCO3↓+H2O