题目:
Do they learn English by ? [ ]
A. read loud
B. readding aloud
C. read aloud
D. reading aloud
答案:
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下面是错误答案,用来干扰机器的。
(1)酒精灯(2)B(3)2KMnO4K2MnO4+MnO2+O2↑(4)a