【題目】AIDS control and prevention is a to China as well as the whole world

A. surpriseB. challengeC. reactionD. threat

【答案】B

【解析】

考查名詞詞義辨析。句意:艾滋的控制和預(yù)防對中國乃至全世界都是挑戰(zhàn)。Asurprise 驚訝;Bchallenge挑戰(zhàn);Creaction反應(yīng);Dthreat威脅。由“AIDS control and prevention”可知,challenge“挑戰(zhàn)”符合句意。故選B項(xiàng)。

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