如果发现一个组织中，小道消息很多，而正式渠道的消息很少，意味着该组织（） A.正式渠

以下说法正确的是：

A．物体做曲线运动时，其加速度一定不为零

B．物体做曲线运动时，其加速度一定改变

C．重力对物体做正功，其动能一定增加

D．向心加速度是描述线速度大小变化快慢的物理量

治疗心气虚、脉结代首选的是（）

A.白术

B.党参

C.防己

D.甘草

E.西洋参

阅读理解

     Below is a housing guide for students going to London.

     University accommodation(住所)offices

     Many university accommodation offices have their own list of registered landlords(房东). Others also

provide information on accommodation agencies and other housing organizations.The advantage of using

your university accommodation office is that you can get some support if you have a problem.The

disadvantage is that they are unlikely to have enough registered landlords to house all their students.

     Property papers：Loot and Renting

     Loot is an important source( )of information about private housing for corenters.The offers are from

private landlords, agencies and individuals looking for other corenters.They also have a website：

www.loot.com.The advantage of using Loot is that there are some excellent bargains.The disadvantage

is that there is no quality control over the offers.

     Renting is another useful paper.The offers in this paper are mainly from accommodation agencies.

Their website is at www.renting.co.uk.

     Accommodation agencies

     The majority of rented accommodation in London is probably advertised through accommodation

agencies.The advantage of using accommodation agencies is that you will have access to a large number

of accommodations.A good agent will listen to your requirement and can save you time in looking for the

right accommodation.The disadvantage is that they will make a range of charges to potential renters.

     Noticeboards

     Around the universities you will find a number of noticeboards where offers of accommodation will be

posted.These will either be from landlords or from students.Some universities will also have online

noticeboards where students can advertise to other students.Advertisements from students can be an

excellent way to find accommodation.However, advertisements from landlords can be problematic.

     Word of mouth  

     Some of the best housing in London is never advertised but is passed on from one group of students

to another by word of mouth.It might be that you can find out about good offers from final year students.

However, don't suppose that just because you have found out about housing from a friend it is necessarily going to be better than that found through any other source.

     Family

     Faced with the very high rents charged in London, some students and their parents will consider

buying as an alternative.In some cases this might be a good choice.

1. What is the advantage of using Loot?

A. It has more offers from accommodation agencies than Renting.

B. It gives you personal information about other corenters.

C. Their website is designed mainly for students.

D. There are some good bargains.

2. A good agent can help you________.

A. know more people

B. find cheap accommodation

C. get the right accommodation quickly

D. get free information about most accommodations

3. The information passed on by word of mouth is important because________.

A. it is better than that found through any other source

B. it helps you find some of the best housing never advertised

C. the final year students always offer better information

D. the landlords have little valuable information

4. For students going to London for the first time, which of the following provides the most reliable

    information?

A. University accommodation offices.

B. Loot and Renting.

C. Noticeboards.

D. Family.

十进制数14对应的二进制数是（）。

A.1111

B.1110

C.1100

D.1010