Passage 3
I’m usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago. While any of these statements might be true, they are practically impossible to prove scientifically. Still, I was struck by a report which concluded that today’s children are significantly more anxious than children in the 1950’s. In fact, the analysis showed, normal children aged 9 to 17 exhibit a higher level of anxiety today than children who were treated for mental illness 50 years ago.
Why are America’s kids so stressed The report cites two main causes: increasing physical isolation--brought on by high divorce rates and less involvement in community, among other things--and a growing perception that the world is a more dangerous place.
Given that we can’t turn the clock back, adults can still do plenty to help the next gene
A. to provide them with a safer environment
B. to lower their expectations for them
C. to get them more involved socially
D. to set a good model for them to follow
| Only recently has biology begun to see
itself as an information technology. An organism’s physiology and behavior are
dictated largely by its genes. And those genes contain information written in
code that is surprisingly similar to the digital code that computer scientists
have devised for the storage and transmission of other information. There are some differences, of Course. The genetic code has four elements (known as bases or letters), while a computer’s binary code has only two. And the bases of genetic code are grouped together in threes rather than in the eight-bit bytes of computing. But the similarities are so striking that biology is suddenly undergoing a serious amount of computerization. At the same time, there has been rapid progress in the machines that supply the raw material for the A. lack adequate funding for new equipment B. have no theoretical basis for dealing with this new information C. are reluctant to acknowledge the importance of the new data D. have not changed the way they work [单选题]氟尿嘧啶的不良反应是下列哪一项( )
A.过敏反应 B.神经毒性 C.肝脏损害 D.胃肠道反应 E.血尿、蛋白尿 [填空题]听觉信号长声为<--NRC-->。
[单选题]安装在管网中各个高点处，用于排除管内聚集的气体的设施称( )。
A.排气阀 B.排水口 C.测压孔 D.测温口 [单选题]听力残疾旅客的代码___。
A.STCR B.DEAF C.WCHR D.WCHC [判断题]石灰石中的CaCO3分解产生CO2，提高了煤气中CO2的浓度，有利于改善煤气利用。（）
[名词解释]隐晶质体
[单项选择]PIS车载子系统中，每列车有（）个车载LCD屏。
A. 48 B. 72 C. 96 D. 24 [单选题]事故紧急抢修只能填用事故紧急抢修单。
A.正确 B.错误 C./ D./ E./ F./ [单项选择]对医术与医德之间关系的理解有误的是（）
A. “医乃仁术” B. 有能力做的就应该去做 C. “大医精诚” D. 临床医学决策同时也是伦理决策 E. 前沿医学技术应用于临床必须有医德参与 我来回答: 提交
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