DCC的意思是（）A.数据通信通道 B.数据通信网 C.数字通信连接

Many people like to travel by plane , but I don't like it because an airport(飞机场) is usually far from the city. You have to get early and wait for hours for the plane to take off and it is often late. You can’t open the windows. You can’t choose the food. Planes are fast, but they still take hours to go out the airport and into the city.

I like traveling by train. I think trains are safe. Train stations are usually in cities. When you are late for a train, you can catch another one. You can walk around in the train and open the windows. You can see many interesting things on your way. I know it takes a little more time.

I also like cars. You can start your journey when you want to, and you don’t need to get to train station or bus stop. Also you can carry many things with you in a car. But sometimes there are too many cars on the road.

小题1: Why do many people like to travel by plane?

A．Because it’s fast.

B．Because it’s safe

C．Because you can walk around in the plane.

D．Because it’s cheap.小题2: Which is NOT the good thing about the train?

A．It is safe.

B．It takes a little more time.

C．You can open the windows.

D．You can walk around in the train.小题3: If you want to take a lot of things with you, what do you take to go out?

A．A bus.

B．A car.

C．A train.

D．A bike小题4: What is the bad thing about the car?

A．You needn’t go to a station.

B．You can start your journey when you want to.

C．There are too many cars on the road.

D．You needn’t go to a bus stop.小题5: What does the writer think of the transportations?

A．He thinks it takes a lot of time to go to and get out of the airport to take the plane.

B．He likes to take a train because it takes a little more time.

C．He likes to take a car because he has a car.

D．He likes to take a plane because it’s fast.

下列哪一组属于急性时相反应蛋白（）

A.ALB、AAG、Hp、AMG

B.AAT、LDL、AAG、CRP

C.AFP、Cp、CRP、Hp

D.TRF、AAG、CRP、Cp

E.Hp、AAG、IgA、C3

小数和分数都是比1小的数．______．

以下关于施工合同质量纠纷成因表述正确的有( )。

A．监理制度不严格

B．建设单位不顾实际地降低造价、缩短工期

C．施工单位在施工过程中偷工减料

D．建筑材料没有注册商标

E．施工单位的承包商不是专业人员

接种乙肝疫苗后，血清免疫学检查可呈阳性反应的指标是（）。

A.乙型肝炎病毒表面抗原

B.乙型肝炎病毒表体抗体

C.乙型肝炎病毒e抗原

D.乙型肝炎病毒e抗原

E.乙型肝炎病毒核心抗体