以下各项关于掩护式支架性能特点的说法不正确的是（）。A、支撑力小，切顶能力弱 B、支

将一粒玉米种子沿中线纵剖开，在剖面上滴一滴碘液，其中呈深蓝色的结构是        ，其中所含的重要成分是           。

第二节完形填空(共20小题，每小题1分，满分20分)

阅读下面短文，掌握其大意，然后从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

About 70 scientists worked on a very busy project. They were really 36.______ because of the pressure of work and the demands of their 37.______. However, everyone liked him and did not 38.______ quitting their job.

One day, one scientist came to him and said, “Sir, I have promised my 39.______ that I will take them to an exhibition, 40.______ I want to leave the office at 5:30 pm.”

His boss said, “You’re 41.______ to leave the office early today.”

The scientist started working. He 42.______ his work after having lunch. 43.______, he had such a heavy work load that he looked at his 44.______ only when he felt he was about to 45.______ the work. The time was 8:30 pm. 46.______, he remembered the promise he had 47.______. He hurriedly left the office, feeling 48.______ to have disappointed the ones he loved so much. He got home, but only his wife was in.

“Where are they?” he asked.

His wife 49.______, “You don’t know? Your boss came here at 5:15 pm and took them to the exhibition.”

What had really happened was like this. The boss noticed him working 50.______ at 5:00 pm. He thought to himself, “This person will not 51.______ the work. But if he has promised his children, they should enjoy the 52.______ to the exhibition.” So he offered to take them to the exhibition.

The boss does not have to do it 53.______, but once it is done, loyalty（忠诚）is established. That is why all those scientists continued to work 54.______ him even though the work was too 55.______.

36.   A. afraid B. angry  C. tired   D. bored

37.   A. boss    B. partner       C. teacher       D. company

38.   A. keep on      B. set off C. make up     D. think of    

39.   A. students     B. friends       C. children     D. parents

40. A. as       B. so       C. but     D. if

41.   A. meant B. refused       C. allowed      D. fired

42.   A. continued   B. finished      C. checked      D. reduced

43. A. So far B. As a result  C. As usual     D. For example

44.   A. timetable    B. watch  C. tools   D. papers

45.   A. design B. report C. hate    D. complete

46.   A. Suddenly   B. Strangely   C. Unexpectedly     D. Unfortunately

47.   A. done   B. set      C. made  D. had

48.   A. painful       B. shy     C. excited       D. sorry

49.   A. begged       B. replied       C. whispered   D. shouted

50.   A. carelessly   B. skillfully    C. unhappily   D. seriously

51.   A. value  B. leave   C. choose       D. like

52.   A. promise     B. way    C. visit    D. interest

53.   A. every time  B. on purpose C. at once       D. in turn

54.   A. on      B. at       C. under  D. in

55.   A. dangerous  B. boring C. worthless    D. much

在确定借款费用暂停资本化的期间时，应当区别正常中断和非正常中断，下列各项中，属于非正常中断的有（　　）。

A．质量纠纷导致的中断

B．安全事故导致的中断

C．劳动纠纷导致的中断

D．资金周转困难导致的中断

建设项目的大气环境影响评价范围，主要根据( )确定。

A．评价区内及界外区域的地形、地理特征

B．项目的评价等级

C．区域内是否包括大中城市的城区、自然保护区、风景名胜区等敏感区

D．项目的大气污染物排放量、排放方式等相关情况

使用摇台时，摇台未抬起，可以发出开车信号。