题目内容
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[单选题]
This is change （)never before experienced.A: with a scaleB: in a scaleC: for a scaleD:
A. with a scale
B. in a scale
C. for a scale
D. on a scale
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A.A. take your position and never change it
B.B. discuss ideas but avoid personal attacks
C.C. raise questions as soon as you have any
