每个成人旅客只可免费携带（）物品。

急性化脓性骨髓炎，可表现为（）

A．起病急，高热伴寒战

B．局部有持续性疼痛，可伴局部肿胀、软组织深部脓肿

C．青少年多见

D．X线表现骨质硬化、密度增加，死骨形成

More than 20,000 drivers and front seat passengers are killed or seriously injured each year. At a speed of only 30 miles per hour it is the same as falling from a third floor window. Wearing a seat belt saves lives; it reduces your chance of death or serious injury by more than half.

Therefore drivers or front seat passengers over 14 most vehicles must wear a seat belt. If you do not, you could be fined up to $50. It will not be up to the drivers to make sure you wear your belt. But it will be the driver’s responsibility to make sure that children under 14 do not ride in the front unless they are wearing a seat belt of some kind.

However, you do not have to wear a seat belt if you are reversing(倒退) your vehicle; or you are making a local delivery or collection using a special vehicle; or if you have a valid（正当的） medical certificate（证书）which excuses you from wearing it. Make sure these cases supply to you before you decide not to wear your seat belt. Remember you may be taken to court for not doing so, and you may be fined if you cannot prove to the court you have been excused from wearing.

60. This passage is probably taken from ______.

A. medical magazine    B. a legal document

C. a textbook    D. a government information booklet

61. Wearing a seat belt in a vehicle ______.

A. reduces road accidents by more than half

B. reduces the death rate in traffic accidents

C. saves lives while driving at a speed up to 30 miles per hour  

D. saves more than 16,000 lives each year

62. It is the driver’s responsibility to ______.

A. make the front seat passenger wear a seat belt

B. make the front seat children under 14 wear a seat belt

C. stop children from riding in the front seat

D. wear a seat belt each time he drives

63. For some people, it may be better to ______.

A. pay a fine rather than wear a seat belt   

B. wear a seat belt for health reasons

C. (not to) wear seat belt for health reasons  

D. get a valid medical certificate before wearing a seat belt

带式除铁器的冷却方式是（）。

A.水冷；

B.气冷；

C.风冷。

须分离不同药用部位的药物是（）

A.当归

B.乌梢蛇

C.川芎

D.紫河车

E.水蛭