下列哪项检查结果阳性，表明乙型肝炎病人有较强的传染性（）。 A.抗HBe B.抗HB

车站发生银行长款，待查明原因后，长款退还当事人。（）

根据接入网定义，它可支持（）

A.单一窄带业务

B.单一宽带业务

C.2B+D业务

D.窄、宽带多种业务的综合接入业务

阅读理解。

     Do you want a bit of an adventure? Would you like to discover all the corners of the UK,

or travel abroad? Maybe you have never tried the motorhome (旅宿车) lifestyle before.

Well, read this article and you will know why a motorhome is a good choice.

     Nothing is better than a motorhome. It has so many uses that it is considered the most

versatile vehicle(交通工具) and it is also very comfortable. If you are thinking about hiring

a motorhome this summer, then the best choice is to book it early, especially if you are

considering the school holidays. The motorhome hire service is very seasonal and motorhome

hire companies will never have extra vehicles available in the summer months.

     There are a lot of companies throughout the UK, and some of the big ones have

motorhomes spread all over the country. At present, the largest network for motorhome hire

is provided by Motorholme which is based in Cambridge. If you are in the UK, you may

phone 0800612 8719 for detail of its motorhome hire information. Motorholme has a

network of over 500 vehicles all over England, Scotland and Wales.

     Most people wishing to hire a motorhome are families that are looking for an alternative

(替代品) to a European package holiday, especially as flying now has become more expensive,

and is considered to be environmentally unfriendly. There is no doubt that the idea of no-fly

holidays is going to become more popular as fewer people think it is safe to fly. This explains

why more and more people are choosing to hire a motorhome for their holidays.

1. This passage is written to explain why it is a good idea to _____.

A. take an adventure

B. travel to England

C. try a new lifestyle

D. hire a motorhome

2. What does the underlined word "versatile" in Paragraph 2 probably mean?_____

A. Large and comfortable

B. Fast and exciting

C. Having a lot of uses

D. Having a lot of fun.

3. Why should you book a motorhome early if you want to book one for this summer?_____

A. Because booking early is much cheaper.

B. Because summer is usually a very busy season.

C. Because you can arrange your time better this way.

D. Because students usually book them to earn money.

4.The last paragraph tells us the advantages of hiring a motorhome by _____.

A. telling us a story

B. giving detailed data

C. comparing it with flying

D. showing the results or a study

当活塞从上止点向下止点移动时，汽缸内产生真空度，可燃混合气经过化油器，进气门吸入汽缸，称为（）。

A.进气行程

B.压缩行程

C.做功行程

D.排气行程

数字档案馆系统安全隐患包括（）等方面。

A、数据窃听

B、自然灾害

C、计算机病毒

D、黑客攻击

E、假冒身份

F、操作失误