（）是我们党的生命线和根本工作路线。A、武装斗争 B、群众路线 C、批评与自我批评 D、改

根据短文内容，完成下面各题。

    The Internet has become an important part of teenage life. Most of them use the Internet to get lots of

knowledges and information, and to relax in their spare time. The teenagers keep in touch w  1   their friends

online. It is cheaper than phoning someone far away and e-mail is also much q  2   than ordinary mail. 

    But some teenagers are not using it in a good way. Many would find life difficult without it. Many teenagers

spend too much time online. Some of the students who used to do w  3   at school are now failing in exams

because now they spend all their time p  4   games online.

    It is important that you use the Internet in a proper manner. Teenagers should learn h  5   to use the Internet

for study and keep away from bad websites.

    Teenagers should make sure that surfing the Net doesn't take the place of their homework or being with

their friends.

A. 根据短文内容及首字母提示,写出所缺单词。 

    1. ________ 2. ________ 3. ________ 4. ________ 5. ________

B. 根据短文内容，判断正(T)误(F)。

    ( )6. Most teenagers use the Internet to get lots of knowledges and information.

    ( )7. The teenagers don't like keep in touch with their friends online.

    (     )8. All the teenagers are using the Internet in a good way.

    (     )9. Some of the students spend too much time online.

    (     )10. Teenagers should make sure that the Internet can't take the place of everything.

某工程设计有两个方案，甲方案功能评价系数为0.85，成本系数0.92，乙方案的功能评价系数为0.6，成本系数为0.7，则最优方案的价值系数为( )。

A．0.857

B．0.911

C．0.924

D．0.952

电钻速度降低应如何处置？

影响电子病案发展的瓶颈问题不是（）.

A.标准问题

B.认识问题

C.资金问题

D.法律问题

E.技术问题