第6题: [单项选择]In the last paragraph the author points out that A. sleeping less is good for human development. B. people ought to be persuaded to sleep less than before. C. it is incorrect to say that people sleep too little. D. those who can sleep less should be encouraged. 参考答案:D 答案解析:此题为细节理解题。据第3段第4句可知。作者认为那些生来就可以少睡觉而且不误工作、玩耍的人不应受到约束，故选D。在第3段最后1句中，作者猜测如果将来人类可以少睡觉多做有益的活动是一种进步(advance
第8题: [填空题]The reason why people announce that "things are not what they were in my young days" is that their ______ is not the same as before. 参考答案:curiosity 答案解析:[解析] 文中提到：到了一定阶段后，人们会宣称“事情和他们小的时候不一样了”(the stage at which people announce that“things are not what t
第29题: [单项选择]幽门梗阻患者因长期呕吐会造成（） A. 低钾低氯性代谢性碱中毒 B. 低钾高氯性代谢性酸中毒 C. 高钾低氯性呼吸性碱中毒 D. 低钾低氯性代谢性酸中毒 E. 高钾低氯性代谢性碱中毒 参考答案:A 答案解析:幽门梗阻患者长期呕吐可导致胃液丢失，胃液中含有盐酸、钾等，可导致低钾低氯性代谢性碱中毒。
第30题: [单项选择]反映胆汁淤积为主的酶类是( ) A. 丙氨酸氨基转移酶ALT B. γ-谷氨酰基转移酶γ-GT C. 天冬氨酸氨基转移酶AST D. 单胺氧化酶MAO 参考答案:B 答案解析:目前血清酶检测按其与肝胆病变的关系分为三类：(1)反映肝实质细胞损伤为主的酶类，主要有丙氨酸氨基转移酶ALT，天冬氨酸氨基转移酶AST等；(2)反映胆汁淤积为主的酶类，主要有γ-谷氨酰基转移酶γ-GT
