手术时发现腹壁下动脉在疝囊颈外侧的是（） A.腹股沟直疝 B.股疝 C.脐疝 D.腹

阅读下面短文，掌握其大意，然后从21—40各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题纸上将该选项标号涂黑。

During the war,my husband was stationed at an army camp in a desert in California.I went to live there in order to be 21  him. I hated the place .I had never  22  been so unhappy . My husband was ordered out on a long-term duty,and I was left in a tiny shack(棚屋) alone. The heat was  23  -almost 125 0F even in the shade of a cactus(仙人掌)。 24  a soul to talk to . The wind blew non-stop ,and all the food I ate ,and the evry air I breathed,were  25   with sand , sand , sand !

I was so sorry for myself that I wrote to my parents. I told them I was  26   and coming back home.I said I couldn’t stand it one minute longer. I  27  be in prison! My father answered my  28  with just two lines-two lines that will always sing in my  29  - two lines that completely changed my life :

Two men looked out from prison bars

One saw the mud ,the other saw the stars

I read those two lines  30   I was ashamed of myself. I made up my mind I would find out what was good in my present  31  ; I would look for the stars

I made friends with the natives,and their  32  amazed me. They gave me presents of their favorite artworks which they had  33  to sell to toueists . I studied the delightful forms of the cactus .I watched for the desert sunsets,and  34  for seashells that had been left there millions of years ago when the desert had been an ocean  35 

What brought about this  36   change in me ? The desert hadn’t changed , 37   I had .I had changed my  38   And by doing so ,I changed an unhappy experience into the most amazing  39  of my life . I was excited by this new world that I had dicovered I had looked out of my self-creatded prison and  40   the stars

21（）

A.off

B.behind

C.near

D.beyond

Active Server Pages(ASP)文件是以( )为扩展名的纯文本文件。

A．txt

B．html

C．doc

D．asp

资料显示PTU公司对库存缺乏有效的分类管理和控制，他们可以采用 ( )。

A．重点管理法

B．关键因素分析法

C．定量库存控制法

D．分存控制法

适用于耗热量大的建筑物、间歇使用的房间和有防火防爆要求车间的采暖系统是( )采暖系统。

A．热风

B．蒸汽

C．辐射

D．分户热计量

模具安装时应检查模具（）。