If you want to see a doctor,you fix a date with him ahead of time.That is a common __________ in the

题目简介

If you want to see a doctor,you fix a date with him ahead of time.That is a common __________ in the

题目详情

If you want to see a doctor,you fix a date with him ahead of time.That is a common __________ in the USA.
A.sense          B.practice              C.rule            D.reality
题型:单选题难度:偏易来源:不详

答案

B
a common practice惯例。

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