风险的不确定性不包括以下哪项______。 A．风险是否发生不确定 B．何时发生

简述水中大肠菌群量的表示法。

企业在遭受自然灾害后，对其受损的财产物资进行的清查，属于( )。

A．局部清查和定期清查

B．全面清查和定期清查

C．局部清查和不定期清查

D．全面清查和不定期清查

下列担保方式中不以转移物的占有权为要件的是（）

A.抵押

B.质押

C.留置

D.定金

Allan goes everywhere with Birgitta Anderson, a 54-year-old secretary. He moves around her office at work and goes shopping with her. ‘Most people don't seem to mind Allan,’ says Birgitta, who thinks he is wonderful. 'He's my fourth child,' she says. She may think of him and treat him that way, buying his food, paying his health bills and his taxes, but in fact Allan is a dog. Birgitta and Allan live in Sweden, a country where everyone is expected to lead an orderly life according to rules laid down by the government, which also provides （提供）a high level of care for its people. This level of care costs money. People in Sweden pay taxes on everything, so aren't surprised to find that owning a dog means yet more taxes. Some people are paying as much as 500 Swedish kronor in taxes a year for the right to keep their dog, money that is spent by the government on dog hospitals and sometimes medical treatment for a dog that falls ill. However, most such treatment is expensive, so owners often decide to pay health and even life insurance （保险）for their dog. In Sweden dog owners must pay for any damage （损坏）their dog does. A Swedish Kennel Club official explains what this means: if your dog runs out on the road and gets hit by a passing car you, as the owner, have to pay for any damage done to the car, even if your dog has been killed in the accident.

小题1: Birgitta pays taxes for Allan because         .

A．he is her dog

B．he is her child

C．he follows her everywhere

D．he often falls ill小题2:The money paid as dog taxes is used to           .

A．keep a high level of care for the people

B．pay for damage done by dogs

C．provide medical care for dogs

D．buy insurance for dog owners小题3: If a dog causes a car accident and gets killed, who should pay for the damage done to the car?

A．The owner of the car.

B．The owner of the dog.

C．The insurance company（公司）.

D．The government.小题4:From the text it can be inferred that in Sweden          .

A．dogs are welcome in public places

B．keeping dogs means asking for trouble

C．many car accidents are caused by dogs

D．people care much about dogs

正常时，肾小管吸收肾小球滤过液总量为（）

A.1％

B.10％

C.50％

D.90％

E.99％