You can’t beat it, but you don’t have to join it. Maybe it got the name common cold because it’s more common in winter. The fact is, though, being cold doesn’t have anything to do with getting one. Colds are caused by the spread of rhinoviruses, and, at least so far, medical science is better at telling you how to avoid getting one than how to get rid of one.
Children are the most common way cold viruses are spread to adults, because they have more colds than adults—an average of about eight per year. Why do kids seem so much more easily to get colds than their parents Simple. They haven’t had the opportunity to become immune to many cold viruses.
There are more than 150 different cold viruses, and you never have the same one twice. Being infected by one makes you immune to it—but only it.
Colds are usually spread by direct contact, not sneezing or coughing. From another person’s hand to your hand and then to
A. the weather is too cold
B. the spread of rhinoviruses gets people infected
C. another person’s coughing passes the cold to you
D. you wash your hands too often
Pubic response to technology often
varies in peculiar ways. While biotechnology, for example, gives rise to
organized opposition, information technology, which is actually no less
invasive(侵害者), no more harmless, is welcomed or, at the least, accepted
with comparatively little debate. Information technologies—from computers to communications—have obviously had an overwhelming social impact and their benefits hardly need explanations. But they have also disturbed privacy and threatened civil liberties. Computerized data banks empower bureaucratic authorities by providing easy access to personal information—about credit ratings, social performance, housing and medical histories. They will allow access to genetic figures, providing information abou [单项选择]单击命令按钮时,下列程序的执行结果是( )。
Private Sub Command1_Click( )
Dim a As Integer,b As Integer,c As Integer
a=3
b=4
c=5
Print SecProc(c,b,a)
End Sub
Function FirProC(x As Integer,y As Integer,z As Integer)
FirProc=2*s+y+3*z
End Function
Function SecProc(x As Integer,y As Integer,z As Integer)
SecProc=FirProc(z,x,y)+x
End Function
A. 20 B. 22 C. 28 D. 30 [简答题]履行统一领导职责的人民政府在恢复与重建工作中有什么职责?
[单项选择]被乙肝病毒污染的物体表面处理方法正确的是()
A. 用清水擦拭 B. 用低效消毒剂擦拭 C. 用高效消毒剂擦拭 D. 用紫外线照射 E. 用清洁剂擦拭 [单选题]关于手套的使用下列哪项是错的
A.应根据不同操作的需要,选择合适种类和规格的手套. B.接触患者的血液、体液、分泌物、排泄物、呕吐物及污染物品时,应戴无菌手套 C.进行手术等无菌操作、接触患者破损皮肤、粘膜时,应戴无菌手套 D.应正确戴脱无菌手套 E.一次性手套应一次性使用 [多选题]市政道路管道宜建在( ),不宜在机动车道下建设。
A.人行道 B.绿化带下 C.非机动车道下 D.快车道 [单选题]“诱饵效应”就是指人们对两个不相上下的选项进行选择时,因为第三个新选项(诱饵)的加入,会使某个旧选项显得更有吸引力。被“诱饵”帮助的选项通常称为“目标”,而另一选项则被称为“竞争者”。根据上述定义,以下属于“诱饵效应”的是:( )
A.某水果店,把散装的水果重新包装,制成礼品篮的形式很受顾客欢迎 B.某酒吧安排“服务员”上网与人聊天,以交朋友等理由为诱饵,诱骗他人至酒吧消费高价酒水 C.卖场里的帽子和毛衣是摆放在一起的,标签上标出的价格分别是:帽子49元,毛衣299元,最后还有一行字:帽子+毛衣=299元 D.货架摆放陈列,一些利润较大的商品大都摆放在和消费者视线平行的位置,这样能促进不少销售量 [单项选择]男,40岁,烧伤后3小时入院。疼痛剧烈,感口渴。面色苍白,心率150次/分,BP85/65mmHg,头颈部、躯干部布满大小不等水疱,可见潮红创面,两上肢呈焦黄色,无水疱。该病人Ⅲ度烧伤面积为()
A. 19% B. 18% C. 39% D. 49% E. 59% [单项选择]Rivers
By original usage, a river is flowing water in a channel with defined banks. Modern usage includes rivers that are multichanneled, intermittent, or transient in flow and channels that are practically bankless. The concept of channeled surface flow, however, remains central to the definition. Rivers are nourished by precipitation, by direct overland runoff, through springs and seepages (渗流), or from meltwater at the edges of snowfields and glaciers. The contribution of direct precipitation on the water surface is usually minute, except where much of a catchment area is occupied by lakes. River water losses result from seepage into shallow or deep aquifers (沙石含水层) and particularly from evaporation. The difference between the water input and loss sustains surface discharge or streamflow. The amount of water in river system at any time is but a tiny fraction of the Earth’s total water; 97 percent of all water is contained in the oceans and about t A. An accumulation of PCBs in the human body is the direct reason of the cancer and other severe disorders. B. PCBs can’t be disintegrated using conventional waste-treatment ways. C. PCBs are degraded by natural processes very slowly. D. PCBs have been found in high contents in the fatty tissues of fish. [单选题]除法律、法规另有规定外,以( )方式取得的国有建设用地使用权没有使用期限的限制。(2011年真题)
A.出让 B.租赁 C.抵押 D.划拨 [单选题]下列关于手持电动工具使用环境条件的陈述,错误的是( )。
A.一般作业场所应使用Ⅰ类电动工具 B.潮湿或金属架构等导电性能良好的作业场所应使用Ⅱ类电动工具 C.锅炉、金属容器、管道内等作业场所应使用Ⅲ类电动工具 D.在狭窄作业场所应使用Ⅳ类电动工具,并有专人监护 我来回答: 提交
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