救助吊带最适合于快速地吊起人员，对病人同样适用。（）

跨越视交叉后上方的颈内动脉分支是（）。

A.脉络膜前动脉

B.脉络膜后动脉

C.大脑前动脉

D.大脑中动脉

E.眼动脉

小明从平面镜里看到镜子对面电子钟的示数的像如所示，这时的时刻应是

A．15∶01

B．10∶21

C．10∶51

D．12∶01

填入正确的引导词。

1. Is there anything _____ you don't understand about the problem?

2. This is the very book _____ I have been looking for.

3. All the presents _____ your friends gave you on your birthday should be put away.

4. The worst matter _____ I'm afraid of happened in the end.

5. He was late for the opening ceremony, _____ was very surprising to me.

6. Lu Xun _____ real name was Zhou Shuren, wrote many political novels and essays.

7. The man _____ you met yesterday is my father's schoolmate.

8. The man _____ is walking on the playground is my old friend.

9. A child _____ parents are dead is called an orphan.

10. Can you still remember the time _____ we spent together in our childhood?

11. The terrible typhoon killed the people and cattle _____ were in the fields.

12. The wind blew down the tallest tree _____ is in front of our school gate.

13. This is the very thing _____ I was looking for.

14. This is the second novel _____ I have ever read.

15. There is nothing in the world _____ can frighten me.

为比较工人、干部中高血压患者所占比例有无不同，进行了X2检验，X2值为9.56，X2(0.05，1)＝3．84，应得出的结论是

A．接受π1＝π2

B．拒绝π1＝π2

C．接受π1＞π2

D．拒绝π1＞π2

E．拒绝μ1＝μ2

白菊花长于（ ），黄菊花长于（ ），野菊花长于（ ）。