C3bnBbp() A.经典途径C3转化酶 B.旁路途径C5转化酶 C.膜结合补体调

题型:单项选择题 B1型题

问题:

C3bnBbp()

A.经典途径C3转化酶

B.旁路途径C5转化酶

C.膜结合补体调节分子

D.可溶性补体调节分子

E.膜攻击复合物

考点:临床医学检验技术(师)临床免疫学检验临床免疫学检验题库
题型:单项选择题 B1型题

阅读理解。

     Car sharing is another way to drive green which is gaining in popularity, especially in urban areas. People

who may not drive every day but still want a car to run errands (差事) or drive on weekends benefit most

from car sharing. Car sharing is usually run by a service like Zipcar, though there are nonprofit (非营利的)

and informal car sharing services. Members pay a monthly fee and have access to an entire fleet of cars when

they need one. The cars are parked in fixed spots around the city, so members only need to make a reservation,

and then go to the pick up spot.

     Car sharing has major environmental benefits because it reduces the number of cars on the road. Members

don't drive just because they are in a car. They plan trips, and if they don't need a car, they don't use one. Still,

a car is available to them if they need to make a big trip to the grocery store, pick someone up at the airport or

if they want to go to the beach for the day. Members also benefit by having access to a car without any of the

headaches of ownership. They usually don't have to pay for the gas, insurance or maintenance (保养), and the

monthly membership fee is less than a typical car payment. So if you really want to go green but aren't ready

to totally give up a car yet, car sharing may be the way to go.

     If you still need to get around, but want to go even greener than sharing a car, share a bus!

1. The author intends to tell us that car sharing ____.

A. has become the most popular way to go to work

B. has become the best way to cut living costs

C. is becoming more and more popular in cities

D. is becoming popular both in urban and rural (乡村的) areas

2. We can learn from the passage that ____. 

A. Zipcar can't help you if you are running urgent errands

B. Zipcar, different from other services, is aimed at green driving with no profit

C. Zipcar is a company supplying car sharing services for a monthly payment

D. Zipcar is a company providing formal car sharing free

3. The second paragraph mainly tells us ____.

A. why people will share a car

B. why car sharing benefits the environment

C. why car sharing is cheaper than owning a car

D. why a car is available to members

4. Which of the following is NOT mentioned in the passage?

A. Car sharing has become a new trend (趋势).

B. Car sharing can save you the headaches of ownership.

C. Bus sharing is even greener than car sharing.

D. Zipcar is the largest company offering car sharing services.

题型:单项选择题 B1型题

境外单位从事国际运输和港澳台运输业务经停我国机场、码头、车站、领空、内河、海域时,纳税人向其提供的(),属于完全在境外消费的物流辅助服务。

A、航空地面服务

B、装卸搬运服务

C、仓储服务

D、收派服务

题型:单项选择题 B1型题

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FOCKE401小盒透明纸包装机油虑清器第一次更换是在机器工作400小时后,以后每次换油都要更换。

题型:单项选择题 B1型题

在安装Informatica软件之前在数据库中需要创建()用户。

A.一个

B.两个

C.三个

D.四个

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