A. it helps strengthen our ties with relatives B. it enables us to eliminate our faults and mistakes C. it makes our leisure-time activities more enjoyable D. it draws our attention away from our worries and troubles 参考答案:D 答案解析:第二段已对此点有明确表述。
第27题: [单项选择]关于诊断肝素样抗凝物质的实验室检查指标,叙述正确的是() A. 血浆凝血酶时间(TT)延长+纤维蛋白(原)降解产物(FDP)增高 B. TT延长+纤维蛋白原(Fg)降低 C. TT延长+抗凝血酶(AT)增加 D. TT延长+正常血浆纠正 E. TT延长+甲苯氨蓝纠正 参考答案:E
第31题: [填空题]A Running 10 miles every day B It does not exist C They hope to find out what has made them live so long D walking E enjoy life F It will be very expensive People who live into very old age always ______. 参考答案:E 答案解析:题干的意思是,长寿老人通常怎样。此句缺乏谓语,E选项满足语法要求,同时在第4段中也有明确的说明。