四六级考试

根据网考网考试中心的统计分析，以下试题在2015-12-21日四六级考试六级习题练习中，答错率较高，为：89%
【单选题】They are produced （）.
A. 10 more pianos this month than last month
B. 10 pianos more this month than last month
C. 10 pianos this month as many as last month
D. 10 as many pianos this month as last month

参考答案：A，答错率：89%
试题解析：
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