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问题 单项选择题

TCP/IP (71) layer protocols provide services to the application (72) running on a computer. The application layer does not define the application itself, but rather it defines
(73) that applications need — like the ability to transfer a file in the case of HTTP. In short, the application layer provides an (74) between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols, with HTTP being only one of those. The TCP/IP (75) layer consists of two main protocol options — the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).

A. hardware B. software C. packetD. equipment

答案

参考答案：B

完形填空
完形填空。
     I was woken up at 1 am. My roommate stood at the door with a tall man.
     "Please let him in," she told me. "He's been__1__out of his apartment. " She had seen
him__2__in the snowy night and immediately asked him to__3__at our place. The man
was a law student. He was doing his__4__in the library which closed at 11 pm when he
__5__he had left his keys in his house.
     To tell the truth, I had never had a(n)__6__sleep in my house before. My roommate
and I were both__7__than one metre sixty and we had been asked "not to__8__to a man
whom you don' t know" since we were kids. Not to mention we were in a__9__city that
we had stayed in less than a month. And here we were soon giving the man my blanket
and pillows. He__10__our hospitality (盛情) with unwillingness__11__soon as dawn
broke he went back to his apartment.
     The next day he came to our house__12__, telling us he owed us a big meal for not
letting him be__13__in the cold night. He gave us a beautiful card reading, "Thank you so
much. Your actions were so__14__He cooked us a wonderful "thank you" dinner__15__
which he told us about his life. He told us how he was completely__16__by our concern
for others. I learnt a lot that evening. As he told us how he once__17__a homeless man
home to have Christmas dinner with his family, a feeling of warmth rose in my__18__.
     My roommate taught me a huge lesson: Let go of your__19__, always leave the door
of your__20__open and you can never go wrong.
( )1.A. driven
( )2.A. shaking
( )3.A. sleep
( )4.A. show
( )5.A. knew
( )6.A. stranger
( )7.A. taller
( )8.A. go
( )9.A. modern
( )10.A. appreciated
( )11.A. and
( )12.A. crying
( )13.A. thrown
( )14.A. common
( )15.A. during
( )16.A. interested
( )17.A. called
( )18.A. heart
( )19.A. anger
( )20.A. kindness

B. made
B. walking
B. eat
B. homework
B. saw
B. adult
B. more
B. speak
B. new
B. experienced
B. but
B. laughing
B. hurt
B. great
B. for
B. touched
B. left
B. body
B. care
B. apartment

C. taken
C. running
C. wait
C. speech
C. found
C. student
C. less
C. listen
C. big
C. refused
C. though
C. smiling
C. caught
C. honest
C. about
C. surprised
C. turned
C. mind
C. tear
C. thoughts

D. locked
D. watching
D. study
D. labour
D. heard
D. roommate
D. smaller
D. relate
D. faraway
D. accepted
D. for
D. shouting
D. frozen
D. hard
D. in
D. puzzled
D. brought
D. head
D. shyness
D. place

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选择题

“嫦娥二号”的成功升空并进入预定轨道，标志着中国探月工程二期正式揭开序幕。下列属于“嫦娥二号”发射成功的主要原因的是[ ]

①改革开放以来，我国的经济实力、科技实力和综合国力已位居世界首位

②广大航天科技工作者发扬了艰苦奋斗、开拓创新精神

③社会主义制度具有强大的生命力和无比的优越性

④我国坚定不移的实施科教兴国和人才强国战略

A、②③④    

B、①②③   

C、①③④   

D、①②④
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