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问题 选择题

20世纪90年代以来的三次局部战争中，美军在海湾战争中从发现一个机动目标到发动袭击需要一天的时间，在科索沃战争中这个时间差已经缩小到一个小时，在阿富汗战争中仅需要10分钟的时间，这一状况与哪一高新技术的发展和应用直接相关[ ]

A．信息技术 

B．原子能技术

C．生物技术 

D．航天技术

答案

答案：A

单项选择题

图示结构MAB=0的原因为（）。

A．AB上无荷载

B．结点无荷载，同时AB杆上无荷载

C．竖向外力自行平衡，无力传给AB杆

D．B铰只传力，不传力偶
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完形填空

One Monday morning, I was standing waiting for the train and suddenly felt ill. I couldn't stand still(直立), and the world began to sway(摇摆) and then went black. All I heard was: "Oh, my God, she's falling. "The next thing I r  小题1:    was that the doctor was asking me my name. This happened b  小题2:   I was too tired. I was so busy cleaning my new house that I didn't eat m  小题3:    last weekend.

The doctor told me that a gentleman (绅士) waiting for the t  小题4:   saw me fall down. He got to my side at once, and told others to c  小题5:   911. He stayed with me until the ambulance (救护车) arrived. Then he went with me to the h   小题6:    , which made him m  小题7:  his train. The doctor told me the gentleman didn't want to leave his name.

I don't know who this gentleman is. B  小题8:  if he reads this article and remembers a young lady fainting (晕倒) at the train station, I'd like h  小题9:  to know that I want to say "Thank you. " to him. Whenever I meet with such a thing, I will do the same as he d 小题10:   to me. And I'll pass on the kindness to others.
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