请描述DRNC820日志管理的内容和功能.

阅读理解。

      English is now the first language of about 400 million people, the mother language of 12 countries and the

official language of thirty-three more countries. That means one in every seven people in the world speaks

English.

      English has become the new Latin (拉丁语) of the century. One must know English is a part of the

twenty-first century. In Italy, for example, English is a must for many technical (技术的) jobs. In China, English

is the most important foreign language learned at school.

      Now no other language on the earth is better suited to play the role of the world language. Because English is

easier to learn than any other language, and it easily borrows local words and phrases from other countries to

expand (丰富，扩大) its vocabulary.

      English is so widely used that it has become the standard language for all kinds of international

communication. Now 75% of the world's mail is in English. 60% of the world's telephone calls are made in

English. 60% of the world's radio stations are broadcast (广播) in English and over half of the world's books

and magazines are written in English. In a word, English is now the world's first language.

1. _____ countries speak English as their mother language.[ ]

A. 11

B. 12

C. 33

D. 45

2. "English has become the new Latin of the century" means _____. [ ]

A. English has a long history

B. English is as important as Latin

C. English has borrowed lots of words from Latin

D. English is as difficult to learn as Latin

3. If you want to ask for a technical job in Italy, you must be able to _____. [ ]

A. speak Latin

B. speak French

C. speak English

D. speak Italian

4. _____ of the world's magazines are written in English. [ ]

A. More than 50%

B. 75%

C. 60%

D. Less than 50%

5. The writer thinks English is now _____. [ ]

A. a native language

B. the world language

C. an official language

D. the Latin language

只有通过操作系统才能完成对计算机的各种操作。 ( )

爆炸分为粉尘爆炸和化学性爆炸。

关于淋病下列描述错误的是（）

A.主要通过性接触传播

B.属急性化脓性炎

C.主要累及泌尿生殖系统

D.男性患者多引起睾丸炎

E.女性可累及子宫颈内膜、输卵管

为满足项目财务效益评价的要求，必须具备的测算报表有( )。

A．投资使用计划与资金筹措表

B．无形资产与递延资产摊销费估算表

C．销售收入和税金及附加估算表

D．总的资产负债表与利润表

E．销售利润的形成与分配估算表