智力发展的关键期在() A.3岁前 B.4岁前 C.5岁前 D.6岁前 E.7岁前

题型:单项选择题 A1型题

问题:

智力发展的关键期在()

A.3岁前

B.4岁前

C.5岁前

D.6岁前

E.7岁前

考点:口腔执业助理医师口腔执业助理医师资格考试2013年真题第一单元
题型:单项选择题 A1型题

关于内部管理控制制度与内部会计控制制度之间的关系,下列表述正确的是( )。

A.没有内部管理控制制度,就没有内部会计控制制度

B.没有内部会计控制制度,就没有内部管理控制制度

C.若要建立有效的内部管理控制制度,必须建立有效的内部会计控制制度

D.若要建立有效的内部会计控制制度,必须建立有效的内部管理控制制度

题型:单项选择题 A1型题

饮停胸胁的治疗主方是

A.苓甘五味姜辛汤
B.小青龙汤
C.泻白散
D.五苓散
E.十枣汤

题型:单项选择题 A1型题

Stop Spam!

When I first got an e-mail account ten years ago, I received communications only from family, friends, and colleagues. Now it seems that every time I check my e-mail, I have an endless series of advertisements and other correspondence that do not interest me at all. If we want e-mail to continue to be useful, we need specific laws that make spamming (发送垃圾邮件) a crime.

If lawmakers do not do something soon to prohibit spam, the problem will certainly get much worse. Computer programs allow spammers to send hundreds of millions of e-mails almost instantly. As more and more advertisers turn to spam to sell their products, individual (个人的) e-mail boxes are often flooded with spam e-mails. Would people continue to use e-mail if they had to deal with an annoying amount of spam each time?

This problem is troubling for individuals and companies as well. Many spam e-mails contain computer viruses that can shut down the entire network of a company. Companies rely on e-mail for their employees to communicate with each other. Spam frequently causes failures in their local communications networks, and their employees are thus unable to communicate effectively. Such a situation results in a loss of productivity and requires companies to repeatedly repair their networks. These computer problems raise production costs of companies, which are, in the end, passes on to the consumer.

For these reasons, I believe that lawmakers need to legislate (立法) against spam. Spammers should be fined, and perhaps sent to prison if they continue to disturb people. E-mail is a tool which helps people all over the world to communicate conveniently, but spam is destroying this convenience.

小题1:What does the underlined word “correspondence” in the Paragraph 1 probably mean?                                                       

A.messages

B.ideas

C.connections

D.programs小题2:According to the text, what is the major cause of the flooding spam?   

A.Companies rely on e-mail for communications.

B.More people in the world communicate by e-mails.

C.Many computer viruses contain spam e-mail.

D.More advertisers begin to promote sales through spam.小题3:According to Paragraph 3, who is the final victim of spam?             

A.The business

B.The advertiser.

C.The employee

D.The consumer.小题4:What is the purpose of the text?

A.To inform.

B.To educate.

C.To persuade.

D.To instruct.

题型:单项选择题 A1型题

鉴别醌环上有未被取代位置的苯醌及萘醌类化合物的是

A.Borntrager’s反应
B.Kesting-Craven反应
C.Feigl反应
D.金属离子反应
E.无色亚甲蓝显色试验

题型:单项选择题 A1型题

设某品的需求函数Q=Q(P)是单调减少的,收益函数R=PQ,需求对价格的弹性记为EP
(Ⅰ) 求证:边际收益


(Ⅱ) 若当价格为P0,对应的需求量为Q0时,边际收益MR=a>0,而R’(P0)=c<0,且这时需求对价格的弹性EP满足|EP|=b>1,求P0和Q0

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