诊断蛛网膜下腔出血最直接的证据是（） A.脑膜刺激征 B.颅内压增高 C.CT结果

阅读理解。

     Skin-diving (潜水) is a new sport today. This sport takes you to a wonderful new world. It is like a

visit to the moon. When you are under water, it is easy for you to climb big rocks, because you are no

longer heavy.

    Here, under water, everything is blue and green. During the day, there is enough light. When fish swim

nearby, you can catch them with your hands.

    When you have tanks of air on your back, you can stay in deep water for a long time. But you must

be careful when you dive in deep water.

    To catch fish is one of the most interesting parts of this sport. Besides, there are more uses for

skin-diving. You can clean ships without taking them out of water. You can get many things from the

deep sea.

     Now you can see that skin-diving is useful and interesting.

参考词汇：rock 岩石 heavy 重的   tank  罐   deep water   深水weight  重量  land   陆地  

                    as…as  像……一样

1. Skin-diving is a new sport. It can take you to _______

A. the moon

B. a new world of land  

C. the hills

D. deep water

2. In deep water _______.

A. there is enough light

B. there is no light at all

C. you can find a lot of blue fish

D. everything looks blue and green

3. You can climb big rocks under water easily because _______.

A. you are very heavy

B. you are as heavy as on the land

C. you are not as heavy as on the land  

D. you have no weight at all

4. With tanks of air on your back, you can _______.

A. catch fish very easily

B. stay under water for a long time

C. climb big rocks

D. have more fun

5. Which of the following is NOT true?

A. Skin-diving is a new sport.

B. Skin-diving is like visiting the moon.

C. The only use of skin-diving is to have more fun.

D. Skin-diving is interesting and useful.

为提高单采粒细胞的回收率，通常要给单采者输入何种药物（）。

A.皮质类固醇激素

B.铁剂

C.叶酸，维生素B₁₂

D.羟乙基淀粉

E.少量多次放血

正规胰岛素每支400U，稀释为10ml，现需注射10U，应抽多少ml

A．0.1 ml
B．0.2 ml
C．0.25 ml
D．0.45 ml
E．0.5 ml

消费者收入水平的变化是影响房地产供给量变化的主要因素之一。( )

2009年1月9日，国务院技术奖励大会在京举行。中国科学院院士、北京大学教授徐光宪获得2008年度（）。

A.国家科学技术进步奖特等奖

B.国家自然科学奖

C.国家最高科学技术奖

D.国家自然科学进步奖