物体从A点静止出发,做匀加速直线运动,紧接着又做匀减速直线运动,到达B点时恰好停

题型:选择题

问题:

物体从A点静止出发,做匀加速直线运动,紧接着又做匀减速直线运动,到达B点时恰好停止。在先后两个运动过程中

(  )

A.物体的位移一定相等

B.加速度大小一定相同

C.平均速度一定相同

D.所用的时间一定相同

考点:匀变速直线运动的导出公式
题型:选择题

租人固定资产登记账簿属于()。

A.序时账

B.明细分类账

C.总分类账

D.备查账

题型:选择题

阅读理解。

  We can not live a modern life without traveling. The fastest way of

traveling is by air. With a plane people can travel in one day to places which it

took a month or more to get to a hundred years ago.

  Traveling by train is slower than by plane, but people can see the country

when they are traveling through. Modern trains have comfortable seats and

dinning-cars. They make even the longest journey(旅途) enjoyable.

  Some people prefer to travel by sea when possible. There are large luxury

liners(客轮) or river boats. They are not as fast as trains or planes, but traveling

by sea is a very pleasant way to spend a holiday.

  Many people like to travel by car. They can make their own timetable. They

can travel hundreds of miles or only fifty miles a day, just as their wish. They can

stop wherever they want to see something interesting or to enjoy a good meal at a

good restaurant, or to spend the night at a hotel. That is why people choose

traveling by car for pleasant trips, while they usually take trains or planes for

business.

1. According to(根据) the passage, the fastest way of traveling is _____.

A. by car        

B. by train        

C. by plane    

D. by sea

2. People can make even the longest journey enjoyable if they take the _____.

A. train          

B. plane            

C. sea          

D. bus

3. _____is a very pleasant way to spend a holiday.

A. Traveling by bike.                

B. Traveling by train.

C. Traveling by sea.                

D. Traveling by car.

4. If we travel by car, we can _____

A. enjoy the longest journey

B. travel only fifty miles a day

C. make our own timetable

D. travel to a very far place in a few minutes

5. When people travel on business, they usually take _____

A. a boat or a train

B. a car or a boat

C. a plane or a car  

D. a train or a plane

题型:选择题

掌握载人航天飞行技术,需要事先反复进行无人航天飞行试验。这样的试验,美国进行了38次,前苏联进行了35次,我国也进行了4次。这说明的哲理有

①事物的发展是前进性和曲折性的统一 ②量变是质变的准备和前提

③事物都是一分为二的              ④矛盾的普遍性和特殊性相互联结

A.①②③

B.①②④

C.①③④

D.②③④

题型:选择题

早年散文受过佛学思想影响的散文作家是()。

A.杨绛

B.丰子恺

C.唐弢

D.秦牧

题型:选择题

行政领导是指担任领导职务,具有法定领导职务并承担相应领导责任的人。 ( )

更多题库