按《广东电网公司设备缺陷管理规定》，按季度统计的配电主设备缺陷中不包含0.4kV设备

大多数焦化厂吸收苯族烃是采用什么来吸收？

下面关于ICMP的说法错误的是______。

A) ping命令的执行过程实际上就是运用ICMP工作的过程
B) 当遇到IP数据无法访问目标、IP路由器无法按当前的传输速率转发数据包等情况时，会自动发送ICMP消息
C) trace命令也是基于ICMP的
D) ICMP消息被封装在TCP数据包内

真理，没有不被怀疑和突破的特权。从根本上是因为[ ]

A．人的认识是不断发展的　　　

B．人能认识世界，但认识总是有限的

C．真理是具体的、有条件的　　

D．客观世界与实践都是无限变化发展的

阅读理解。

     Faced with a tough job market, fresh graduates are dreaming of running their own businesses instead.

     But a recent survey has showed that such desires lack the required support and remain just dreams.

     The Shanghai Municipal Employment Promotion Center poll of l,276 graduates in several universities

and colleges in the city, released last Friday, showed 60 percent of interviewees considered the possibility

of setting up a company or at least a small store. "But they just stop at the 'thinking' stage," it stated.

     Interviewees put the top reasons for not going it alone down to a shortage of money and a lack of

business opportunity.

     They also listed lack of business experiences and social networks, the need for advanced study and

objections from family members as factors that stood in their way.

     More than 90 percent of the interviewees said they would rather take up a job after graduating and then

consider starting their own business two or three years down the road.

     Guo Bing, a senior student in Shanghai International Studies University majoring in English, decided he

wanted to be his own boss last year.

     But he is looking for a job first. "If I fail to find a satisfying job, I would like to run a company in

exhibition services," Guo said.

     The Shanghai native has some relatives working in a local printing plant. With their help, Guo hopes to

produce exhibition brochures (资料手册) at a low price. He is also confident that his English language skills

can help him do well in the industry.

     Guo said that the shortage of graduate jobs is the main reason driving more university students to set up

a business right after their graduation.

1. Which factor contributes most to the interviewees "unrealized dreams"? [ ]

A. a lack of business experience

B. a lack of social networks

C. objections from family members

D. a lack of money

2. What can help Guo Bing do well, if he runs a company in exhibition services? [ ]

A. His parents' help

B. His strong will

C. His good command of English

D. His interview experience

3. How many of the interviewees in the survey would like to find a job first after graduation?[ ]

A. over 1148.

B. over 128.

C. over 757.

D. over 510.

4. We definitely know from the passage that _____. [ ]

A. more than half of the interviewees have set up their own companies or stores

B. the fresh graduates want to set up their own business because of a tough job market

C. Guo Bing decided to be his own boss when he graduated from his university

D. Guo Bing is so independent that he can do well without others' help

开始起管柱前，向井内泵入一段重浆塞，继续开着泵循环重井液，什么时候井底压力首先增加（忽略井内的动压力损失）？（）

A.一旦重浆段塞开始进入环空时。

B.一旦整个段塞进入了环空时。

C.一旦整个段塞被泵入管柱并且将离开钻头时。

D.当开始向管柱内泵入段塞时。