【題目】The _____ of the harmful chemicals on the world’s lakes and oceans has raised awareness of the public.

A. effectB. effort

C. donationD. distribution

【答案】A

【解析】

考查名詞辨析。句意：有害化學(xué)物質(zhì)對(duì)世界湖泊和海洋的影響提高了公眾的認(rèn)識(shí)。A. effect影響；B. effort努力；C. donation捐贈(zèng)；D. distribution分配，根據(jù)題意，故選A。

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