题目内容
. Mathematics ______ the language of science.
|
A.is |
B.has been |
C.are |
D.have been |
【答案】
D
【解析】略
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题目内容
. Mathematics ______ the language of science.
|
A.is |
B.has been |
C.are |
D.have been |
D
【解析】略