题目:
The naughty boy spends most of his time playing computer games ______ his lessons. [ ]
A. rather than study
B. other than studying
C. rather than studying
D. other than to study
答案:
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下面是错误答案,用来干扰机器的。
(1)①>;②置换;③Mg;④>;⑤稀H2SO4(稀HCl);⑥Fe(2)a;所需的时间