问题 单项选择题

下列哪组血清乙肝标志结果提示有检验误差()

A.HBsAg(+)、抗HBs(﹣)、HBeAg(+)、抗HBe(-)、抗HBc(+)

B.HBsAg(+)、抗HBs(﹣)、HBeAg(﹣)、抗HBe(-)、抗HBc(+)

C.HBsAg(-)、抗HBs(﹣)、HBeAg(﹣)、抗HBe(+)、抗HBc(+)

D.HBsAg(+)、抗HBs(﹣)、HBeAg(﹣)、抗HBe(﹣)、抗HBc(+)

E.HBsAg(+)、抗HBs(﹣)、HBeAg(+)、抗HBe(+)、抗HBc(+)

答案

参考答案:E

解析:乙肝标志HBeAg可在血清中检出,提示急性期感染的早期标志,表示病毒复制,具有高度传染性,抗HBe不可能同为阳性。

阅读理解

Many people like to travel by plane , but I don't like it because an airport is usually far from  the city. You have to get there 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 of the airport and into the city.

I like traveling by train. I think trains  are safe. Railway 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 a railway station or a 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 is fast.

B.Because it is often late.

C.Because an airport is far from the city .

D.Because they can open the window.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 station.小题5:What does the writer think of the plane, the train and the car?

A.He likes to take A plan , the train and the car.

B.He doesn’t like to take a plane because it's fast.

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

D.He likes to take a train although it takes a little more time.

单项选择题