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Many lifestyle patterns do such ________ great harm to health that they actually speed up ________ weakening of the human body.
A．a(chǎn)；/B．/；theC．a(chǎn)；theD．/；/
B
考查冠詞。句意：許多生活方式對人類的健康有害，他們加速了人類身體的衰退。do harm to表示“對……有害”，中間無需冠詞；the weakening of the human body特指人體的衰弱。
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