刷防水涂料时，第二层涂刷的方向应与第一层()。 A.一致  B.相反  C.斜交叉

阅读理解。

                                                               A free trip

     "I didn't often have to trip!" he said, laughing. "Someone in a car is always ready to pick me up

if I stand by the road and wait. Do you often take people in your car?" said Ford.

     "Yes," said Patterson. "I stop for them when they look tired or poor. I feel sorry for them when

they're walking and I'm in my car. They haven't as much money as I have, and so I'm ready to help

them."But as he spoke, he turned his head and looked at Ford's coat. It was a good coat and

Patterson thought about it a lot as he kept us eyes on the road in front.

     They came at last to a big forest with high trees on each side of the road. This part of the country

was very beautiful, but they did not see any other cars or people, and there were no houses. Then

Patterson saw something on, the road far away in front of the car.

     "What's that?" he cried. "Can you see it? It looks like a man. There!  Can you see his face?  Is

he ill? He may be dead. Poor man!"

1. Ford took Patterson's car and he _____.

A. didn't have to pay for it

B. would have to pay for it

C. could get some money

D. had to work for Patterson

2. Patterson always helped people on the road because _____.

A. he would be paid

B. he had nothing else to do

C. he wanted someone to be with him

D. he was always kind to others

3. When the two men came to a forest, they could see _____.

A. nothing

B. cars and people

C. houses

D. lots of trees

4. Which of the following is TRUE?

A. Patterson never stopped his car on the road.

B. The two men didn't talk on the road.

C. A man was found lying on the road.

D. Ford wore a blue coat.

油机启动电池应经常处于（）状态，应（）空载试机一次，（）加载试机一次。

（B）．一带电粒子以垂直于磁场方向的初速飞入匀强磁场后做圆周运动，磁场方向和运动轨迹如图，则可能的是（　　）

A．粒子带正电，沿顺时针方向运动

B．粒子带正电，沿逆时针方向运动

C．粒子带负电，沿顺时针方向运动

D．粒子带负电，沿逆时针方向运动

脉络膜转移癌特点（）

A.CT、MRI、超声波、FFA有助诊断

B.常双眼受累

C.有全身其他部位肿瘤病史

D.视网膜下液

E.后极部视网膜下灰黄色或黄白色结节状扁平隆起

我国政治制度决定了行政组织的根本属性是( )。

A．政治性

B．服务性

C．权威性

D．法制性