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Problems of the Elderly Gerontologists (老年人问题学者) study how old people are treated within a society and how the elderly deal with the inevitable problems of aging, particularly those involving health and income. Health problems include normal losses in hearing, eyesight, and memory, and the increased possibility of chronic(慢性的)diseases. These losses are gradual and proceed at different rates for each individual. In general, the health of old people today is better than that of earlier generation-a condition that is likely to improve still further as more people receive better medical care throught their lives. Because most old people are no longer in the labor force, a steady source of income is necessary. Systems of pensions and benefits are characteristic of industrial societies. O A. Gradual loss of hearing. B. Gradual loss of courage. C. Gradual loss of sight. D. Gradual loss of memory. [单选题]党对统一战线的领导主要是( )。
A.部门领导 B.个人领导 C.文化领导 D.政治领导 [单项选择]脑疝的最有效脱水药是（）。
A. 甘露醇 B. 速尿 C. 糖皮质激素 D. 山梨醇 E. 固利压 [判断题]水工施工现场及作业地点，夜晚施工应有足够的照明，主要通道要有路灯。
A.正确 B.错误 [填空题] "My TV reception is so clear; you’d think I had a
50-foot antenna (天线) on my roof!" I’m amazed at the way technology has improved television. From the silent film centuries ago to three-dimensional videos, technology also changed the role TV sets have played in people’s daily life. Developments in electronic circuits have resulted in TV sets that have sharper pictures, brilliant colors and clearer sound. From the smallest portables to wide-screen home theater systems, televisions continue to work better and better as visual innovations are introduced. In addition, various TV programs, from current news to entertainment programs, from talk shows to TV series, all have greatly enriched people’s leisure life. When assessing the impact that certain media have on public audiences, we must recognize that TV is the more "socially accepted" media with greater appeal to us than radio. So is there anyone who can deny [单选题]下列选项中,不属于润滑剂作用的是()。
A.润滑 B.防水 C.冷却 [单选题]社区警务思想在20世纪80年代（ ）引入我国。
A.中后期 B.前期 C.中期 D.后期 [判断题]生态旅游者保护性行为就是指带有环境意识的旅游行为过程，这种行为在吃、住、行、游、购、娱六个环节中很注重保护，强调旅游与保护的和谐统一，而不只着重偏向某一方面。
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