已知的公司财务数据有：流动资产、销售收入、流动负债、负债总额、股东权益总额、存货、平

近年发现的重庆巫山人经科学测定距今为204万年,这将我国境内已知最早人类历史向前推进了约多少年（  ）

A．34万年

B．44万年

C．170万年

D．204万年

About a year ago, I went to stay at a Detroit hotel. I didn’t want to  31  too much money with me, so I asked the desk clerk to put a hundred-dollar bill in the safe for me.

The next morning,  32 , the clerk said that he knew nothing about my money. I didn’t have any proof  33  I had given the man the money. There was clearly nothing left to do but go to the  34  lawyer.

The lawyer  35  me to return to the hotel with him and give another hundred dollar bill to the desk. So we did. An hour later, I went  36  to the desk and asked for my money.  37  I had the lawyer as an eyewitness to the  38  hundred dollar bill, the clerk could not say he  39  nothing about it.

Another hour later, I put the second part of the lawyer’s  40  into action. This time both the lawyer and I went to the hotel to  41  for the hundred-dollar bill once again, and  42  the clerk insisted that he had given  43  to me, I said it was not true. The lawyer said to him, “ I  44  this gentleman give you a hundred-dollar bill. If you don’t hand it  45  immediately, I will be forced to call the  46 ”. The clerk realized he had been  47 , so he gave me back the first hundred-dollar bill.

“ I don’t know  48  to thank you enough for  49  my money back.” I said to the lawyer. And what do you suppose he answered? He said, “ Oh, don’t  50  me. That will be one hundred dollars, please.”

31. A. carry                         B. lend                         C. spend                       D. hold

32. A. but                                   B. yet                           C. however                   D. instead

33. A. where                        B. which                      C. why                         D. that

34. A. nearest                       B. farthest                    C. good                        D. native

35. A. advised                      B. promised                  C. agreed                      D. followed

36. A. up                             B. down                       C. back                        D. along

37. A. Though                      B. When                       C. Unless                      D. Since

38. A. one                           B. another                    C. first                         D. second

39. A. believed                     B. had                          C. knew                       D. heard

40. A. law                           B. way                         C. plan                         D. words

41. A. search                        B. ask                          C. make                       D. beg

42. A. when                         B. though                            C. because                    D. as

43. A. these                         B. this                          C. them                        D. it

44. A. agreed                       B. saw                          C. let                           D. matched

45. A. over                          B. in                                   C. up                           D. out

46. A. policeman                  B. officer                            C. official                     D. clerk

47. A. punished                    B. helped                      C. cheated                    D. understood

48. A. why                          B. how                         C. when                       D. where

49. A. returning                   B. giving                      C. getting                            D. asking for

50. A. believe                      B. thank                       C. leave                        D. fool

串联电路的总电阻比电路中任一部分的电阻都______；这是由于电阻串联相当于增大了导体的______；并联电路的总电阻比任一支路的电阻都______，这是由于电阻并联相当于增大了导体的______．将一段粗细均匀的导体拉长至原来的3倍，则其电阻是原来的______倍．

某大豆经销商做卖出套期保值，卖出10手期货合约建仓，基差为-30元/吨，买入平仓时的基差为-50元/吨，该经销商在套期保值中的盈亏状况是（）。

A．盈利2000元 

B．亏损2000元 

C．盈利1000元 

D．亏损1000元

（）表示表面安装技术。

A.SMT

B.SMBD

C.SMC

D.SMB