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Environmentalistsobservethatthereislessfreshwaterfordri...

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問題詳情：

Environmentalistsobservethatthereislessfreshwaterfordri...

Environmentalists observe that there is less fresh water for drinking and irrigation, thus ________ agriculture downstream.

A. endangered B. endangering C. having endangered D. being endangered

【回答】

B

知識點：非謂語動詞

題型：選擇題

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