机械运转时，可以从事零部件的拆装工作，可以触摸和擦洗运转着的部件。

患者，女，9岁，上颌前牙内倾，覆牙合12mm，覆盖8mm，下前牙咬上颌黏膜，四个第一磨牙呈Ⅱ类咬合关系，SNA82°，SNB76．5°，ANB5．5°，UI－SN93．5°，FMIA71°，四个第二磨牙未萌，四个第三磨牙牙胚存在。

对此患者应采取的矫治计划为 （）

A.使用方丝弓矫治器矫治至结束

B.使用上颌斜面导板矫治器

C.使用上颌平面导板矫治器

D.使用Activator矫治器

E.先使用带平导的活动矫治器打开咬合，替牙完成后，使用方丝弓矫治器开始治疗

有以下程序： #include＜stdio.h＞ void fun(char*t,char*s) { while(*t!=0)t++； while((*t++=*s++)!=0)； } main() { char ss[10]="acc",aa[10]="bbxxyy"； fun(ss,aa)；printf("%s,%s\n",ss,aa)； } 程序的运行结果是______。

A．accxyy，bbxxyy

B．acc,bbxxyy

C．accxxyy,bbxxyy

D．accbbxxyy,bbxxyy

     Wherever she goes, Molly leaves her mark. Without saying a word, she speaks to people with her

kind eyes.  Even when she walks away, she leaves an impression. Molly's mark is a smile, stamped into

the ground by the horseshoe at the bottom of her false leg.

     A few years ago, Molly was badly attacked by a dog. The dog bit all four or Molly's legs and left

large cuts in her face. Molly's owner, Kate Harris, took  her to an animal hospital. Doctors there were

able to save Molly's life, but soon one of her legs became very infected(感染).

     At first, doctors thought Molly would have to be put to sleep. But Molly changed their minds. This

pony, doctors noticed, shifted her weight, and rested her good leg from time to time. Doctors knew that

Molly had amazing intelligence, and that she wanted to live.

     Several doctors operated on Molly, and removed her infected leg. A false leg was made for her. The

leg was a hollow case with a pole at the bottom for balance. Doctors gave Molly a special horseshoe at

the bottom of the leg. This horseshoe she had a stamp of a smile face in it!

     After the operation, Molly walked around on all four legs, as if nothing had ever happened to her!

Now, with every step she takes, she stamps a smile in the dirt. But she leaves her mark in other ways,

too.

Kaye Harris took Molly to the false leg center. There were children there who, like Molly, had artificial

arms or legs. They were amazed to see a pony with a false leg. Molly made them smile and gave them

hope. Soon, Molly began to visit schools, nursing homes,army bases and hospitals. A book was even

written about Molly!

1. Molly is the name of a________.

A. dog  

B.  horse

C.  parent  

D.  child

2. Which of the following is true according to the text?

A. Molly can speak to people in kind words.

B.  Kay Harris took Molly to a children's hospital after the attack.

C.  In the beginning, doctors had planned to end Molly's life.

D.  Molly sometimes leaves smiling marks on people's faces.

3. What is unique about Molly?

A.  Molly has a false leg with a horseshoe shaped like a smiling face.

B.  Molly ran a race and won the first prize.

C.  Molly often visits places such as schools and parks.

D.  Molly has become a symbol of hope for people of all ages.

4. Which is the best title for the passage?

A.  A Book on Molly

B.  A False Leg

C.  A successful Operation

D.  Leaving her Mark

压缩式制冷系统应进行系统吹污，压力应取0．6MPa，介质应采用（）

A.干燥空气

B.湿空气

C.氮气

D.氧气

输血前准备工作，下列哪项是错误的

A．检查库血质量，血浆呈红色，不能使用

B．血液从血库取出后，在室温内放置15min再输入

C．先给病人静脉滴注0.9%氯化钠溶液

D．两人核对供、受血者的姓名、血型和交叉试验结果

E．在血中加入异丙嗪25mg，以防过敏反应