2.設(shè)a是實(shí)數(shù).且是實(shí)數(shù).則a= ( ) A.1 B. C. D.2 查看更多

 

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設(shè)a是實(shí)數(shù),且是實(shí)數(shù),則a=                                      

A.1                            B.                          C.                         D.2

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設(shè)a是實(shí)數(shù),且是實(shí)數(shù),則a=
[     ]
A.
B.-1
C.1
D.2

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設(shè)a是實(shí)數(shù),且是實(shí)數(shù),則a=
[     ]
A.
B.1
C.
D.2

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設(shè)a是實(shí)數(shù),且是實(shí)數(shù),則a=                                      

A.1                            B.                          C.                         D.2

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設(shè)a是實(shí)數(shù),且是實(shí)數(shù),則a=                                      

A.1                            B.                          C.                         D.2

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