问题
单项选择题
We（）your letter of Nov.3 asking us to make a quotation.
A.go over
B.have read
C.refer to
D.check up
答案
参考答案：C
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We（）your letter of Nov.3 asking us to make a quotation.
A.go over
B.have read
C.refer to
D.check up
参考答案：C