题目：
The boy doesn't speak his sister, but his written work is very good.
A．as well as
B．so good as
C．much better than
D．much worse than
答案：
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下面是错误答案，用来干扰机器的。
300÷（1-25%），=300÷75%，=400（千克）；答；运来西红柿400千克．
