GX-6型苎麻自救绳的直径为（）mm。 A.4 B.5 C.6 D.12

临床上一般最早在腹部用听诊器可听到胎心音( )。

A．16周
B．20周
C．28周
D．36周
E．40周

.

New economy online

People are talking about the “new economy”. It’s very different from the “old economy”.

In the old economy, people travel to walk. They buy things in stores. They use the post office, the fax and the telephone to send information. They see people face-to-face at their jobs or in stores. People get information from newspapers, radio, television, books and libraries.

In the new economy, people do business through the “net”, which is a connection of millions of computers everywhere in the world. In the new economy, workers often work at home. They can get information online. They can communicate with employers and co-workers by e-mail . Businesses have “virtual（虚拟的）stores”. They are websites on which customers can see the products. Business can sell to customers anywhere in the world.

In the new economy, people live a fast paced, convenient and colorful life. The whole world develops more quickly than before. But the new economy is double-edge sword(双刃剑).Its disadvantage is also obvious. For example, the Internet has led to a huge increase in credit care(信用卡)cheating. Some illegal websites offer some cheap or banned(禁止的) goods or services. Online shoppers who enter their credit card information may never receive the goods they want to buy and their card information could even be for sale in an illegal website. So people in the new economy should be smarter and knowledgeable.

68.The cause of the differences between the new economy and the old economy is ______.

A. the change of people’s idea      B. the business people do

C. the use of the Internet          D. the change of people’s life

69.In the old economy, people can do the following things EXCEPT______.

A. getting information from books

B. communicating with friends by telephone

C. meeting people face to face

D. shopping online

70.“But the new economy is a double-edge sword.” in the last passage means______.

A. the new economy is as sharp as a sword

B. the new economy has advantages and disadvantages

C. the new economy is better than the old economy

D. both the new economy and the old economy have disadvantages

71.Which of the following is NOT true?

A. People can get all kinds of information on the Internet.

B. Telephone, radio, television, newspapers and so on will disappear in the new economy.

C. People in the new economy should have high quality.

D. Life in the new economy is more comfortable than the one in the old economy.

涂膜粉化达到3级，应重新进行涂装。

著名学者齐美尔认为，由于允许冲突的存在，结构松散群体和开放社会会对那种危及基本意见一致的冲突形成保护层，从而把产生有损核心价值观念的分歧的危险减少到最低程度，对立群体的互相依赖和这种社会内部冲突的交叉，有助于通过互相抵消而把“社会体系缝合起来”，这样就阻止了沿着一条主要分裂线的崩溃。这段文字要表达的主要意思是（）。

A． 某些社会冲突有助于社会稳定

B．社会冲突可能会导致核心价值观念的分歧

C．开放社会的特征是允许不同群体间的冲突存在

D． 社会的和谐与冲突是辩证的

在双代号网络计划中，下列说法正确的是（）。

A．两端为关键节点的工作一定是关键工作

B．关键节点的最早时间与最迟时间有可能相等

C．关键工作两端的节点不一定是关键节点

D．由关键节点组成的线路一定有关键线路