Scientists are confident that they can make lasers which can missiles.A. knock downB. kn

发布时间：2020-08-16 10:36:30

   Scientists are confident that they can make lasers which can      missiles.
A. knock down
B. knock out
C. knock into
D. knock off

网友回答

A. knock down
(答案→)B. knock out
C. knock into
D. knock off
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