8. Palm-sized unmanned aircrafts, flying robots, can ________ dangerous rescues when rescuing tasks are too risky for human beings
to carry out.
(A) execute
(B) alleviate
(C) impact
(D) utilize
詳解 (共 3 筆)
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Palm-sized unmanned ...
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8. Palm-sized unman...
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execute 實行、實施 Plea...