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20.某物作自由落體,已知落下第1秒內的距離是落地前1秒內的,則某物著地共費時多少秒? (A)2 (B)3 (C)4 (D)5 (E)6
問題詳情
20.某物作自由落體,已知落下第1秒內的距離是落地前1秒內的,則某物著地共費時多少秒?
(A)2
(B)3
(C)4
(D)5
(E)6
參考答案
答案:B
難度:困難0.222222
統計:A(5),B(2),C(1),D(1),E(0)
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7. The secretary was requested to be more precise in revising the contract so as toavoid _____ and m
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IV. Discourse Organization (5%, 1% for each) After Japan’s Fukushima nuclear accident, more and more
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【題組】43. (A) leading (B) leaving (C) letting (D) allowing
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【題組】53. (A) which (B) who (C) that (D) what
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