下颌义点基托需要缓冲的部位是:（） A．磨牙后垫 B．下颌舌骨嵴 C．颊系带 D．颊

健康教育的目的哪项不对()

A．树立健康意识

B．养成良好行为

C．消除危险因素

D．增强康复信心

E．替代继续治疗

     Visitors to Britain are sometimes surprised to learn the newspapers there have such a large circulation(发行量). The Daily Mirror and the Daily Express both sell about four million copies every day. British

families generally buy a newspaper every morning and two or three on Sundays.

      Besides the national papers, there is, however, another branch of the British press which sells almost

as many copies. Local newspapers have a weekly circulation of 13 million. Almost every town and

country area has one. Nearly all of them hold their own finance(财政) and many of them are very

profitable.

      These papers are written almost entirely for readers interested in local events-births, weddings,

deaths, council(议会) meetings and sports. Editors prefer to depend on people who know the district

well. A great deal of local. news is regularly supplied by clubs and churches in the neighborhood and it

does not get out of date as quickly as national news.

     The editors must never forget that the success of any newspaper depends on advertising. They are

usually anxious to keep the good will of local businessmen for this reason. But if the newspaper is well

written and the news items have been carefully chosen to draw local readers, the businessmen are

grateful for the chance to keep their products in the public eyes.         

1. Local newspapers have

A. a circulation as large as that of national newspapers

B. a daily circulation of 13 million

C. a slightly smaller circulation

D. an even larger circulation

2. Which of the following is TRUE?

A. Every town and country area has at least one paper of its own.

B. Nearly all towns and country areas have their own papers.

C. There is a paper, national or local, in each town and country area.

D. A lot of distant town and country areas do not have their own papers.

3. In the writer's opinion, the editor must remember that no paper can possibly succeed without         .

A. advertisements

B. interesting reports

C. a great deal of national news

D. an excellent sales manager

4. Which of the following is NOT true?

A. A great deal of local news is supplied by the clubs and churches.

B. Local readers are much interested in local news.

C. These papers are written almost entirely for local readers.

D. These papers are likely to get out of date quickly.

n个顶点e条边的图，若采用邻接表存储，则空间复杂度为（）。

6502电气集中1~7线的作用是什么？

利用铀235或钚239原子核的自持裂变链式反应原理制成的核武器，称为裂变核武器，通常称为中子弹。