第14题: [单项选择]Some scientists are dubious of the claim that organisms ______ with age as an inevitable outcome of living. A. depress B. default C. deteriorate D. degrade 参考答案:D 答案解析:动词辨析。depress意为“使沮丧、使萧条”;default意为“疏怠职责、缺席、拖欠”; deteriorate意为“使恶化”;degrade意为“退化、降级、堕落”。根据with age的提示,