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.A.It's my father. B.It's old. C.It's Betty's.
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25． Where is the nurse-s house?A． Behind Mike's．B． Beside Jack's．C． Beside Mike's．D． Under Jack's．
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Do you think _______ a good idea that he sold the vegetables at half price_______ let them go bad?A.it’s; as well as
B.it; rather than
C.it’s; instead of
D.it; as good as
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Do you think_______ a good idea that he sold the vegetables at half price_______ let them go bad?A.it's; as well as
B.it; rather than
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10. 已知反应 （1) MnO（s) + 1/2O2（g) = MnO2（s) 的ΔrH1my （2) MnO2（s) + Mn（s) = 2 MnO（s) 的ΔrH2my 则 ΔfHym（MnO2、S） = （） A．ΔrH1my－ΔrH2my B. 2ΔrH1my+ΔrH2my C. 2ΔrH1my－ΔrH2my D. ΔrH1my+2ΔrH2my
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