If a substance is dissolved in water or heated, it may ______ a gas.A、give away

游客2023-11-18  25

问题 If a substance is dissolved in water or heated, it may ______ a gas.

选项 A、give away
B、give in
C、give off
D、give back

答案 C

解析 C give off意为“散发出(气味),发出(光、声音等)”,可与gas,smell,light,heat,sound等连用,故为答案。而A give away意为“泄漏(秘密),赠送”;B give in意为“认输,投降;交上”;D give back意为“归还,返回,恢复”。
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