用离子交换法处理污水中,推动离子交换的动力室离子间的()和交换剂上的功能基对离子的亲

题型:单项选择题

问题:

用离子交换法处理污水中,推动离子交换的动力室离子间的()和交换剂上的功能基对离子的亲和力。

A.速度差

B.压力差

C.质量差

D.浓度差

考点:油气田水处理工考试高级油气田水处理工考试高级油气田水处理工考试题库
题型:单项选择题

如图所示,两带电小球A、B,质量均为m,电量分别为-3q和+q,用两根长度相等的绝缘细线相连悬挂于天花板上。若在两小球所在空间加一水平向右的匀强电场,则平衡时两小球及连线情况应如下面哪个图所示

[ ]

A.

B.

C.

D.

题型:单项选择题

临床诊断胆道蛔虫症的主要依据是()

A.阵发性剑突下钻顶样绞痛而体征轻微

B.静脉胆道造影术胆总管内显示虫体影

C.钡餐检查十二指肠内有条索状虫影

D.十二指肠引流液镜检有虫卵

E.胃液引流查到蛔虫卵

题型:单项选择题

《危险化学品安全管理条例》规定,剧毒化学品经营企业销售剧毒化学品应当记录。下列对于记录有误的是( )。

A.购买单位的名称、地址
B.购买人员的姓名、身份证号码
C.所购剧毒化学品的品名、数量、用途
D.记录应当至少保存2年

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To get help, Internet addicts tired of their square-eyed, keyboard tapping ways need look no further than the Web for counseling. There is now an online counseling service at www. relate, org. nz for Internet obsessives. Just e-mail the details of your Internet-induced crisis and help comes direct to your inbox. (46)The new breed of cybertherapists see nothing strange about offering help through the very medium that is swallowing their clients’ free time and splitting their marriages.

Getting hooked on the Internet isn’t confined to a few computer nerds. It’s on the rise everywhere—and women are the most likely addicts. The old stereotypical addict was a young man who spent hours playing games, downloading software or reading messages on newsgroups. (47)Yet, the new image is of a young woman who fritters away hours e-mailing friends, buying books and CDs online, talking in chatrooms and looking for information for next year’s holiday.

Ingrid Parker, once a slave to Internet chatrooms, found her experiences so devastating that she wrote a book to help other addicts break the habit. (48) Her computer dream turned to nightmare when she sold up and moved to be with her cyberpal (who had just left his wife), only to be told a week later that the couple were getting back together. The heart-breaking turn of events gave her the motivation to control her addiction—and write the book Caught in the Web.

For Ingrid Parker, anyone who is married or in a sound relationship should not really be spending hours talking to someone else and ignoring their nearest and dearest. (49)While Parker provided her own therapy by putting her experiences down on paper, she recommends others take up the online counseling offer, or log off from the Worldwide Web gradually.

She said, "It’s like smoking. It’s not a good idea to suddenly go cold turkey. People often e mail me about the problem and I tell them to gradually wean themselves off and not to switch to a scheme where you pay per hour for online time. (50)If they break their resolution, all they end up with then is the same old problem plus money difficulties for the long hours they have spent logged in to the Internet. "

Of course, the Internet is definitely addictive but if you can keep it in control it has advantages, too. Using it can be a steep learning curve so it helps you become very quick at learning. Also there is a huge demand for people in the field of Information Technology (IT) and hours on the Internet are great training.

(46)The new breed of cybertherapists see nothing strange about offering help through the very medium that is swallowing their clients’ free time and splitting their marriages.

题型:单项选择题

男性,50岁,收缩压21.6kPa(162mmHg),舒张压12.8kPa(96mmHg),血脂偏高,劳累后感到心前区疼痛,休息后可缓解,心电图检查 T波低平

病人对自己的血压情况有些紧张,护士在对病人进行健康指导时错误的是

A.嘱病人注意休息
B.避免情绪激动
C.低盐饮食
D.安慰病人
E.可少量饮酒

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