进入高速公路行驶的车辆，均应当缴纳（）。法律、法规另有规定的除外。

The one-child policy has been carried out for about 20 years .Most Chinese families have only one child. By the year 2008,the number of only children in China had already been 330 million ,which was about the population of the United States .In the next twenty years ,the only-child generation (一代人) will become the main builders of our society .No one knows how much he or she will change the world .

Only children in families often receive the best care, sometimes ,even get a lot of indulgence .Parents always try their best to satisfy their children’s needs .Those children, who are called “little emperors” ,are in danger of too much love .

However these kids often fell lonely because neither their parents nor their classmates can take the place of a brother or a sister.

It seems that only children are still not ready to do their duty .some elder only children have already graduated from college .But they still depend on their parents .They need a longer time to change for their jobs, because they were brought up in a safe environment. When their parents get older, a couple of only children will have four parents and even more grandparents to look after. It will surely be the biggest problem if they don’t well prepare to face it. 

小题1:What was the population of the U.S.A in the year 2008?

A. About 3, 300, 000.   B. About 330, 000, 000.  C. About 33, 000, 000.

小题2:In this passage the word  “indulgence” means ________.

A. 溺爱             B. 批评               C.指导

小题3: Why do only children feel lonely?

A. Their parents have no time for them.

B. They don’t have free time for activities.

C. They have no brothers or sisters.

小题4:What’s the biggest problem for the family that is made up of two only children?

A. They have to look after four parents and even more grandparents.

B. They they still depend on their parents.        

C. They need a longer time to change for their jobs

小题5:The best title for the passage is ____________.

A. Parents for Only Children  B. The Only-child Generation  C. The Only-child Policy

CPR时电除颤的时机为（）。

A.按压的同时

B.呼气末

C.吸气末

D.吸气时

E.呼气时

男，30岁。外伤致髌骨中份横形骨折．移位2cm，其最佳的治疗方法是（）

A.手法复位石膏外固定

B.切开复位张力带钢丝固定

C.手法复位经皮穿针内固定

D.切开复位钢丝环扎内固定

E.髌骨切除术

芽胞是芽胞细菌在生长发育过程中形成的特殊的（）细胞形态，有利于细菌渡过（）。它是由细菌营养细胞中（）而成。

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