问题 单项选择题 A1/A2型题

二相性真菌在含有动物蛋白的培养基上形成酵母型菌落的培养温度是().

A.18℃

B.25℃

C.28℃

D.37℃

E.41℃

答案

参考答案:D

解析:大多数真菌培养温度为28℃,但深部真菌为37℃。对二相性真菌培养时,28℃培养真菌呈菌丝相(霉菌型),37℃培养为组织相(酵母型)。

单项选择题
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 .