在OCR系统业务监督中，普通监督业务不包括（）
A.要素识别勾兑
B.附件审核
C.账表核对
D.主附件核对
参考答案：C
This mobile phone is of good quality. If it ______ break down within the first year, we would repair it
at our expense. [ ]
A. would
B. should
C. could
D. might
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