船舶受外力作用发生等容微倾时,其()会发生变化。 A.重心 B.浮心 C.稳心 D.

题型:单项选择题

问题:

船舶受外力作用发生等容微倾时,其()会发生变化。

A.重心

B.浮心

C.稳心

D.漂心

考点:海上货物运输船舶结构与货运船舶结构与货运题库
题型:单项选择题

人们倾听地声,利用岩层发生形变时的地声异常来预报地震,这是利用了[ ]

A.固体能够传播声音

B.固体比较坚硬,振动强烈

C.固体传播声音速度快

D.固体传播振动均匀

题型:单项选择题

一个长方形长30米,宽20分米,它的周长是______分米.

题型:单项选择题

三、完形填空(共20小题,每小题1分,共20分)

A   37   thing happened   38   me last Sunday. It was such a beautiful day __39_ I drove to go for a look in the country.

On the way back home, my   40   stopped. It was out of gas on a   41   road far from a town! I decided to walk until I found someone   42  could sell some gas. I had walked almost a mile   43  I finally found a house near the __44__. I was glad to see it because it was getting dark.

I knocked at the door and a little old lady with long white hair __45_. She said, “I’ve been __46__ for you here for a long time. Come in.   47   is almost ready.”

“But I only came for some gas,” I answered. I couldn’t   48   what she was talking about.

“Oh, Alfred! Gas? You   49  tea,” said she.

I quickly   50  that my car was out of   51  , but she didn’t seem to listen to me. She just kept   52  me Alfred and talking about how long it had been   53   she had seen me. She was acting very strangely and I was anxious to leave. As soon as she went to get tea, I went out of the house as fast as I   54  .

Fortunately, there was another house down the road and I was able to buy the gas I needed. When I told the man about my   55 , he said, “Oh, that’s Miss Emily. She lives by herself in that big house. She’s strange, but she wouldn’t   56  anybody. She is still waiting for the man she was going to marry thirty years ago. The day before their wedding he left home and never came back because of the war.”

37. A. happy   B. strange       C. common     D. bad

38. A. on B. in       C. upon   D. to

39. A. and      B. so       C. but     D. that

40. A. car       B. bus     C. bike    D. truck

41. A. narrow B. lonely C. crowded     D. busy

42. A. what     B. whom C. who    D. how

43. A. before  B. after   C. while  D. as

44. A. street    B. path    C. way    D. road

45. A. came    B. answered    C. opened       D. appeared

46. A. asking  B. looking      C. calling       D. waiting

47. A. Gas      B. Coffee       C. Tea     D. Lunch

48. A. consider       B. understand  C. accept D. think

49. A. like      B. love    C. used to like D. liking

50. A. answered     B. explained   C. refused       D. promised

51. A. gas       B. tea      C. strength      D. energy

52. A. calling  B. call     C. to call D. called

53. A. until     B. before C. since   D. when

54. A.could     B.can      C. would D. wanted

55. A. accident       B. incident      C. experience  D. surprise

56. A.hit  B. injury C. hurt    D. frighten

题型:单项选择题

核爆炸的方式主要有哪几种?

题型:单项选择题

矿井外因火灾事故多因()等原因造成。

A.放糊炮

B.电焊、气焊

C.井下吸烟

D.煤炭自燃

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