可用于治疗心力衰竭的药物是() A.阿替洛尔 B.氨力农 C.盐酸普鲁卡因胺 D.双

题型:单项选择题 A1/A2型题

问题:

可用于治疗心力衰竭的药物是()

A.阿替洛尔

B.氨力农

C.盐酸普鲁卡因胺

D.双嘧达莫

E.盐酸维拉帕米

考点:初级药师药物化学药物化学题库
题型:单项选择题 A1/A2型题

有关视网膜a神经节细胞的叙述,错误的是()。

A.它终止于外侧膝状体核的第1、2大细胞层

B.它对运动产生应答

C.决定颜色视觉

D.与立体感有关

E.对低空间频率对比敏感度产生应答

题型:单项选择题 A1/A2型题

采用打叶复烤与挂杆复烤相比有如下优点:()

A.减少烟叶造碎

B.可以向卷烟厂提供高质量、规格化的原料

C.有利于叶片的长期贮存和醇化

D.利于烟叶分级

题型:单项选择题 A1/A2型题

Watch out, Yahoo. There is a search engine out there with super speed and accuracy. It’s very cool.

Google is the Web’s largest search engine. In just two years it has gained a reputation for surprising speed and accuracy, delivering what you are looking for in a second. The site now does this 40 million times a day --- a number achieved without spending a penny on a TV or newspaper ad.

Google doesn’t need them. In the past six months alone, the site has won a Webby (the online version of the Oscar) for technical excellence, set a new record for search engines by indexing a billion Web pages.

Yahoo still has ten times the audience, but Google consistently ranks first in customer satisfaction: 97% of users find what they are looking for most or all of the time. “You see people smile when they use it, like they’ve found something no one else knows about,” says Danny Sullivan, editor of an online newsletter.

No one is smiling more than Larry Page, 27, and Sergey Brin, 26, who seem certain to become billionaires when the company goes public, probably sometime in 2004. they make a great comedy duo(成对的表演者)。When they first met as Ph. D. students, the pair say, they found each other horrible – “I still find him horrible,” adds Brin – but driven together by a computer-science project aimed at coming up with better ways of searching the Web.

The idea behind the Google is that traditional search engines are stupid. They think relevance (关联) is based on repetition; if you type in a request for Tiger Woods, say, you’ll get websites listed according to how many times those words appear. Not only is this no guarantee of quality, but it’s also open to abuse. If you own a Tiger fan site and want to lead more people to it, simply type his name thousands of times in the site’s source code(编码).

1What does the underlined word “them” in the third paragraph refer to?

A. 40 million times              B. Speed and accuracy. 

C. TV and newspaper ads.        D. Web pages

2. Which of the following win greater customer satisfaction?

A. Yahoo        B. Tiger Woods      C. Larry Page     D. Google

3. It can be inferred that Page and Brin ______________.

A. hold very important positions in Google

B. are two ordinary computer programmers of Google.

C. used to hate each other very much

D. hold quite different opinions of computer-science

4. We can learn from the last paragraph that ___________.

A. Google is open to abuse

B. Google remains a traditional search engine

C. Google thinks relevance is based on repetition

D Google is better than traditional search engines

题型:单项选择题 A1/A2型题

导游人员在导游活动中以明示或者暗示的方式向旅游者索要小费的,扣除4分

题型:单项选择题 A1/A2型题

救助船舶在前往遇险船救助时()。

A、如果可能用无线电话进行遇险收妥确认;

B、等待指示;

C、不用确认;

D、没有规定

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