单项选择题

Mobile phone, e-mail and telephone ______ of people’s social communication nowadays.

A. are the most three common means
B. are the three most common means
C. are the most common three means
D. are three the most common means
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单项选择题
A. show B. pick C. make D. check
A. show
B. pick
C. make
D. check
单项选择题
C
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