问题 单项选择题 A1/A2型题

支气管肺炎的主要X线表现是()

A.脊柱旁及心脏边缘部病变较多

B.可出现三角形的肺不张,尖端指向肺门

C.肺门增大、模糊,伴局限性肺气肿改变

D.两肺下野中、内带,沿肺纹理分布的小斑片状阴影

E.局限于一个肺野或肺段的密度增高阴影

答案

参考答案:D

填空题

Differences in bicycling between China and other countries

People all over the world ride bicycles . But there are many differences between China and other countries .

Wearing helmets(头盔)

You may think  helmets  are useless .But you are wrong . In many places kids have to wear them when they ride bikes . In some places of the United States , it's against the law (违反法律)for kids under 16 to ride without  helmets  .Many people say that helmets are like seat belts (安全带) for bikes .

Bike lanes (车道)

In China , bicycles have their own special lanes on the road . People can ride next to cars . In the USA , roads are only for cars . People don't ride their bikes to school or work . But this isn't true everywhere in the West . In the Netherlands(荷兰)there are more bikes than people . The whole country has bicycle lanes .

Riding for fun

Do you ride your bike to school ? In China this is very common . But in the USA , kids only ride their bikes for fun on the weekend . They regard bicycling as a sport . Many cities have special parks .People turn old railways(铁路) into bike roads . People can ride from town to town  .

小题1:What are  the differences between China and other countries in bicycling ?

_________________ are the differences between China and other countries in bicycling .

小题2:Which country has the law that everyone must wear a helmet while riding ?

____________ has the law that everyone must wear a helmet while riding  .

小题3:What do many people think of helmets  ?

They think that helmets are  _______________ for bikes .

小题4:Which country has more bikes than people ?

__________________________ there are more bikes than people  .

小题5:What do Americans regard bicycling as and how do they do  ?

They regard it as  __________ ; they build some special  _________ and turn  __________ into bike roads .

选择题