题目内容
If you want to see a doctor, you fix a time with him ahead of time. That's a common ________ in the USA.
[ ]
A.sense
B.practice
C.rule
D.reality
答案:
解析:
解析:
|
固定短语。 a common sense通常的感觉、意识;a cimmon practice(一般的做法)惯例。 |
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