48 When there is danger of ______ chemicals, all crew members should put on protective clothing and breathing apparatus.
(A) emerging
(B) toxic
(C) durable
(D) intriguing

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統計: A(51), B(444), C(32), D(18), E(0) #1200254

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#2067861
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#3707123

When there is danger of ______ chemicals, all crew members should put on protective clothing and breathing apparatus設備;儀器;裝置;用具, 機構, 組織,機制

(A) emerge翻譯:出現、浮現;露出,(從困境中)擺脫出來,存活、為人知曉。
(C) durable翻譯:持久的。
(D) intriguing翻譯:非常有趣的;引人入勝的;神秘的。

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