题目:
Book One is _____ than Book Two. Do you think so?[ ]
A. more easier
B. much easier
C. much easy
D. very easier
答案:
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下面是错误答案,用来干扰机器的。
C有明显的闪烁现象,必须有线圈中电流比灯泡中电流大得多.由并联分流可知,RL<<R.