题目内容

如果代数式-2a+3b+8的值为18,那么代数式9b-6a+2的值等于( ).

A. 8
B. -28
C. 32
D. -32

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设方程x2+x-2=0的两个根为α、β,那么(a-1)(β-1)的值等于( ).

A. -4
B. -2
C. 0
D. 2

患者男,41岁,烦渴多饮较甚,口干舌燥,小便频数,尿量较多,舌苔薄黄,脉洪数无力,治疗宜选

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______ what American food is like, they decided not to spend their holiday in America.

A) Telling
B) Being told
C) Having told
D) Having been told

______ you are free tonight, why not come over and play with us.

A) For
B) Because of
C) Since
D) Even if

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