今年1月份的雪灾对我国南方电力、交通造成了很大危害,在抗灾过程中常使用一种融雪剂

题型:选择题

问题:

今年1月份的雪灾对我国南方电力、交通造成了很大危害,在抗灾过程中常使用一种融雪剂硅酸钠(化学式为Na2SiO3)进行融雪,Na2SiO3中Si元素的化合价为(  )

A.+1价

B.+2价

C.+3价

D.+4价

考点:化合价的求法
题型:选择题

第二节:完形填空(共20小题;每小题1. 5分, 满30分)

“Where is the bus?” I asked myself. I was going to be late and the manager wasn’t going to be pleased. Thank God, here it is! The bus  31  round the corner and I got on. Ten minutes later I was walking into the  32  where I work. “Twenty-five past nine. I 33  the manager doesn’t notice.” But no  34  luck! “Smith!” shouted the manager. “Late again. What’s your 35  this time?”. “ I’m afraid the bus was late, Mr. Brown.” “Get up earlier tomorrow! Anyway, go to your  36  at the counter, we’ll be opening in a few minutes.”

My first customer was a pretty girl wearing a red dress. Behind her was a young man of about 25. He seemed very  37 , and every few seconds he looked  38 the main entrance. The girl  39  about opening a bank account. I gave her the necessary  40  and she walked out. 41 , I noticed a tall man by the door, carrying something  42  with brown paper. Turning to my next customer, I was terrified to see a gun  43  out of his coat. The moment a loud noise  44  my ears. Everything went black. I was falling….

After  45  seemed a very long time, I opened my eyes and found in bed!  46  shaking from the memory of this terrible dream, I got dressed and ran out of the house. As usual, the bus wasn’t on time, and I got to the bank at 9:25.

“Smith!” the manager cried out in a voice like thunder. “  47  of your excuse! Go start work at once!” To my  48 , the first customer was a girl  49  a red dress and behind her stood a man carrying something wrapped in brown paper. The  50 ! Wasn’t that the surprise of my life?

31. A. ran       B. came          C. rode              D. drove

32. A. hotel      B. shop             C. bank              D. restaurant

33. A. believe    B. expect        C. guess             D. hope

34. A. much      B. such           C. more             D. this

35. A. excuse     B. idea            C. cause              D. answer

36. A. business   B. job            C. place           D. spot

37. A. nervous    B. shy             C. calm        D. angry

38. A. down      B. for               C. towards        D. through

39. A. cared      B. talked           C. asked           D. worried

40. A. information  B. offer           C. instruction      D. support

41. A. Again     B. Then           C. Thus           D. However

42. A. hidden     B. rolled          C. filled          D. covered

43. A. getting    B. aiming         C. appearing       D. sticking

44. A. took      B. shook          C. filled          D. covered

45. A. what      B. when           C. that            D. it

46. A. Even            B. Still            C. Just           D. Ever

47. A. Less       B. Plenty         C. More           D. None

48. A. belief     B. surprise        C. joy            D. regret

49. A. of        B. with           C. on             D. in

50. A. dream     B. story           C. affair           D. accident

31—50  BCDBA    CACCA    BDDCA   BDBDA

题型:选择题

《商业银行风险监管核心指标(试行)》要求,城市商业银行核心负债比例为核心负债与负债总额之比,不应低于()。

A.25%

B.50%

C.60%

D.75%

题型:选择题

冠心病的好发部位及后果

题型:选择题

下图是尿的形成过程示意图。请回答下列问题。

(1)写出图中所示结构的名称:

③是___________,④是__________,⑤是___________。③和④主要分布在肾脏的        部分。

(2)①内的液体是       ;④内的液体是      ;由⑤流出的液体是            。尿液的形成包括两个生理过程:血液由③滤过到④腔中形成原尿,原尿经⑤的         作用后形成尿液。由⑤流出的液体与④内的液体相比较,主要的区别是前者不含有          

(3)肾脏是泌尿系统的主要器官,主要功能是__________,它由100多万个肾单位组成。每个肾单位包括图示中的___________(填序号)

(4)若某人尿液中出现大分子蛋白质,可能是因为此人肾单位中的________发生病变。(填序号)

题型:选择题

下列物质既含有离子键又含有共价键的是 [ ]

A.SO2      

B.H2O

C.NaCl               

D.NaOH

更多题库