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【单选题】
指挥清军在中越边境前线大败法军取得镇南关大捷的是?A.
。
B.
。
C.
。
D.
。
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反馈参考答案：
举一反三
【单选题】I hope to be _______ to all sorts of people with different values and believes.
A.
exposure
B.
expose
C.
exposed
D.
exposing
【单选题】I know you have eaten all sorts of junk food your mother and I probably _____ you have.
A.
shouldn’t let
B.
can’t let
C.
couldn’t have let
D.
shouldn’t have let
【单选题】He talked as if he ______ all the work himself, but in fact Tom and I did most of it.
A.
did
B.
had done
C.
should do
D.
has done
【单选题】用余弦函数描述一简谐振子的振动．若其速度～时间（ｖ～ｔ）关系曲线如图所示,则振动的初相位为【图片】
A.
π/6
B.
π/2
C.
π/3
D.
2π/3
E.
5π/6
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