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如图,菱形ABCD中,∠B=60°,AB=4,则以AC为边长的正方形ACEF的周长为( ) A.14 B.15 C.16 D.17
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Don’t be so _______ (patient). The manager will announce the result soon.
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Health problems are closely connected with bad eating habits and a _____ of exercise. [ ]
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We _______ finish it ahead of time, though it was such a tough task.
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