9100BTS的SUM目前支持（）路Abis接口。 A.3 B.4 C.1 D.2

阅读理解。

     China loves exhibitions. Exhibitions provide people with a chance to see what is available, and perhaps

more importantly, what may be available. In order to make your visit more efficient, the rules listed below

may be of some help to you.

     Avoid attending the opening ceremony

     Unless your company is sponsoring (主办) the exhibition, find out when the opening ceremony is and

show up about 30 minutes after that. The opening ceremony is like a starting gun as soon as it's over, the

gathered crowds will rush to the doors to get inside the exhibition halls.

     Don't be distracted (分散注意) by pretty models

     Hot cars and pretty girls may go well together, but don't be distracted by them. Remember what you

really want to see at an exhibition.

     Go early.

     Unlike the western competitors, Chinese exhibitors don't give away a lot of freebies during exhibitions.

So, if you want the freebies, go to the show on the first day, right after the opening ceremony.

     Don't go during lunch hour

     Lunch is like a daily national holiday in China, Lunch hour, unfortunately, leaves exhibition booths (摊位)

manned by guys who are more interested in stuffing (塞满) food into their mouths than explaining the product

or promoting  (促进) the company.

     Avoid any booth with a big screen TV, a video game, or a loudspeaker

     These are cheap ways of attracting consumers to visit a booth, and it doesn't always guarantee that the

vendor (买主) has a good product to show. Its purpose is to attract people with an electronic dog-and-pony

show.

     Hand your name cards out to everyone

     Take plenty of business cards in both Chinese and English with you when going to an exhibition. Hand

them out to every exhibitor whose booth you visit. This method helps advertise the name or your company,

so don't leave home without them!

     Follow the guards

     Guards are available to assist anyone in need of help and to keep order. So follow them and look for the

best products to see at an exhibition.

     Set a time limit

     Prepare for what you want to see, how much time you want to spend and where you want to spend your

time.

     Remember these rules and you will have a fruitful experience at an exhibition.

1. Which of the following is NOT true according to the text? [ ]

A. Lunch hour is a good time for you to visit a booth.

B. You'd better set a time limit.

C. You can ask for help from the guards.

D. Exhibitors usually hand out freebies on the first day of an exhibition.

2. What is the clever way to advertise your company according to the text? [ ]

A. To hold an exhibition.

B. To hand your name cards out to every exhibitor you visit.

C. To attend the opening ceremony.

D. To visit all the booths at an exhibition.

3. What does the underlined word "freebies" mean? [ ]

A. A kind of toy

B. A kind of food

C. Something that is given to somebody without payment

D. Something that is given to somebody with payment

4. What would be the best title for the text? [ ]

A. Why Do You Attend an Exhibition

B. Rules for Attending an Exhibition in China

C. Rules for Holding an Exhibition in China

D. An Exhibition Means an Advertisement

建立数据库系统的主要目标是减少数据冗余，提高数据的独立性，并集中检查（）。

A.数据操作性

B.数据兼容性

C.数据完整性

D.数据可维护性

以下哪个不是PTN网络保护的恢复模式（）。

A.1+1恢复

B.1+1非恢复

C.1：1恢复

D.1：1非恢复

劳力型心绞痛的典型心电图改变是

A．ST-T降低，T波倒置

B．ST段抬高，T波倒置

C．ST段抬高，异常Q波群，T波倒置

D．ST段水平或下斜型下降，T波倒置或低平

E．J点下降

渤海机电安装公司承包了30000m室外压力管道的安装工程，安装施工前履行了告之手续，书面告知提交了相关材料。

该工程工期很紧，施工期间阴雨天较多。项目部为了保证工程质量，把室外压力管道安装分为原材料检验、管架制作安装、管道预制、管道安装、管道焊接、管道试验、管道保温、管道吹扫等工序，按照对整体质量影响的重要程度进行预控和检查。在施工过程中，实行了“三检制”，同时加强了专职检查，并利用排列图法对出现的焊接气孔问题进行了分析，及时采取了改进措施，顺利地完成了任务。

专职检查员在第一阶段检查焊口质量时，一共检查出40处气孔超标，分析了原因，列表如下：

项目部针对出现的焊接气孔质量问题，应采取哪些改进措施？