现实世界中，事物的一般特性在信息世界中称为 ______。A．实体 B．实体键 C．

作为导游员在服务中要注意做到“不亢”，即不可表现出自卑情绪，以至于低三下四，盲目崇洋。

常用阿米巴痢疾病原诊断方法除粪便直接涂片、硫酸锌浮聚法外，尚有

A．血片镜检法

B．汞碘醛离心沉淀法

C．动物接种法

D．细胞培养法

E．同工酶分析

第二节 完形填空（共20小题;每小题1.5分，满分30分）

阅读下面短文，掌握其大意。然后从36～55各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

When Alice started to cycle home from Jenny’s house, she wasn’t nervous. She was certainly not afraid of the dark.  36  , it was only a 15,ncnule ride home. But halfway there, she began to wish that he hadn’t been so   37  .

As she rounded a sarp benu, it suddenly   38   cold－very cold. Alice’s breath became puffs of white cloud and her legs aso cale that it became hard to ride.

With her liart beating fast, she struggled so hard to move   39   that the didn’t hear the car which suddenly appeared beside her. She stopped by the road. The big black car also   40  ,Slowly, the passenger-window began to slide down. Alice held her breath. In the soft light inside the car, something   41  . Then, the light brightened and Alice was staring at a sweet, grey-haired old lady. “Hello, dear,”said the old lady. “I need   42  . I’m afraid I’m lost. I need to find the nearest airport. I must be there in the next five minutes.”

“Airport? You   43   are lost,”Alice said. “You need to go back five kilometers   44   you reach the”

T-junction.Turn left and  45  for about another 10 kilometers to the main highway.From there,just follow the  46  to the airport.But I’m afraid there’s no  47  you’ll get there in five minutes!”

“Thank you very much,dearn eplied the old lady.“Don’t worry-I’ll  48  it time.”

The  49  up and the started off.A little way ahead,it  50  and with hedlights filashing, it drove past Alice. But then, mething  51  happened.The car hegary changing flrst, its color  52  from black to silvey grew when, the wheels began disappearing, but the car    to move forward,  53  just above the grolld. As the car  54  into the dark sky, the big red tail-lights grew larger and larger and glowed more and more brightly.With a faint whistling  55  ,the car was gone in seconds,leaving Alice shaking her head in disbelief…

36.A.However                     B.Besides              C.Therefore           D.Othrwise

37.A.brave                   B.excited               C.eurious               D.grew

38.A.fell                      B.around               C.forward              D.backward

40.A.arrived                 B.aopped               C.stayed                D.started

41.A.gathered               B.opped                C.stayed                D.started

42.A.help                            B.exicult               C.rest                    D.water

43.A.necess                  B.gas                    C.rest                    D.water

44.A.if                         B.until                  C.unless                D.as

45.A.drive                    B.walk                  C.follow                D.march

46.A.address                 B.sigms                 C.notiees               D.guidance

47.A.doubt                   B.room                 C.time                   D.way

48.A.have it                  B.get it                  C.make it                     D.finishit

49.A.door                     B.window              C.headlight            D.wheel

50.A.passed                  B.rashed                C.turned                D.continued

51.A.strange                 B.entive               C.imaginable         D.horrible

52.A.developen             B.apend                 C.spread                D.ladea

53.A.rollin                   B.floating              C.drawing             D.flashing

54.A.pointed                 B.returned             C.broke                 D.rose

55.A.tune                            B.voice                 C.sound                 D.tone

读西北地区图，完成下列要求．

（1）图中数字代号代表的地形区名称．①______②______，该地近年来发现了丰富的______资源．③______．

（2）写出图中各字母代表的省区．

A．______B．______C．______D．______．

设R是一个2元关系，有3个元组，S是一个3元关系，有3个元组。如T=R×S，则T的元组的个数为( )。

A．6

B．8

C．9

D．12