不属于溶血性贫血筛查试验的是（）。 A.血清结合珠蛋白 B.血浆游离血红蛋白 C.血

关于有形资产净值债务率，下列说法中不正确的有（）。

A.有形资产净值债务率能反映债权人投资受到股东权益的保障程度

B.有形资产净值债务率是负债总额与有形资产净值的百分比

C.有形资产净值是股东具有所有权的有形资产的净值

D.对于债权人而言，有形资产净值债务率越高越好

阅读理解。

     A kind of little cars may be seen in the streets in the future. People will like this kind of small cars better

than the big ones. The car is as small as a bike. But it can carry two people in it. Everybody can drive it easily,

just like riding a bike. Even children and old people can drive them to schools or parks.

     If everyone drives such cars in the future, there will be less pollution in the air. There will be more space

for all the cars in cities, and there will also be more space for people to walk in the streets.

     The little cars of the future will cost less money to buy and to drive. These little cars can go only 65

kilometers an hour, so driving will be safer. The cars of the future will be fine for going around the city, but

they will not be useful for a long trip.

     This kind of cars can save a lot of gas. They will go 450 kilometers, then they have to stop for more gas.

They are nice cars, aren't they?

1. If you drive this kind of little cars for four hours, you can probably go ______ at most. 

A. 260 kilometers

B. 65 kilometers

C. 450 kilometers

D. 130 kilometers

2. Why do these little cars have to stop after going 450 kilometers? 

A. For more water.

B. For more gas.

C. To have a rest.

D. To charge (充电)

3. Which of the following statements is NOT true? 

A. Driving big cars can make the air dirtier. 

B. The little cars can make more space for other cars and people. 

C. These little cars will be useful for a long trip. 

D. This kind of cars can save much gas.

鼻源性硬脑膜外脓肿常继发于（）

A.急性上颌窦炎

B.急性额窦炎

C.急性筛窦炎

D.急性蝶窦炎

E.以上都不是

自花授粉作物的群体（烟草的遗传）特点？

在高土壤电阻率地区，接地电阻值很难达到要求时，可采用（）措施降低接地电阻。

A、采用多层接地措施

B、在变电站附近有较低电阻率的土壤时，可敷设引外接地网或向外延伸接地体

C、当地下较深处的土壤电阻率较低时，可采用井式或深钻式深埋接地极

D、加密接地体