UNR is a very engine –– it recharges its own battery while it’s running. A．flexible ——青夏教育精英家教网—

题目内容

8、UNR is a very ________ engine –– it recharges its own battery while it’s running.

A．flexible B．permanent C．delicate D．efficient

试题答案

8、D

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UNR is a very _______ engine―it recharges its own battery while it's running.

A. flexible B. permanent C. dehcate D. efficient

UNR is a very ________ engine –– it recharges its own battery while it’s running.

A．flexible B．permanent C．delicate D．efficient

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