有甲、乙、丙3个相互独立的投资方案，寿命期均为10年，无残值，基准收益率12%，（P

按厚度来分，热轧钢板分为厚板和薄板，厚板一般用于( )。

A．焊接结构

B．屋面围护结构

C．墙面围护结构

D．涂层钢板原料

变量间的相互关系主要有两种类型（）和相关关系。

三、完形填空（15小题，计15分）

Once there lived in Egypt a famous philosopher(哲学家) named Zun-Nun. One day a young man came to visit him and asked ___30___, “Please, sir, why are great people like you dressed in such a way?”

___31____ his ring to the man, the philosopher said, “I will answer your question, ___32____ first you must take this ring to the ____33___ and sell it for one gold coin.”

Looking at the dirty ring, the young man replied ____34___, “One gold coin? Could this ring be sold at that ___35____?” Then he went to the market. He ____36___ the ring to the vegetable, meat, fish traders, and others. The fact was that no one was willing to ____37____ a gold coin. He went back and said ___38____ to Zun-Nun, “I didn’t manage to sell it. They all thought a gold coin was too ___39____ a price for such an ugly ring.” With a smile, Zun-Nun said, “Now go ___40____ the gold shop at the back of this street, and show ____41____ to the owner. Don’t give your price; just wait and let him tell you ___42____ he would like to pay.”

The youny man went to the shop, returned and reported, “The traders in the market don’t know the ____43___ of this ring. The gold trader said he would pay one thousand gold coins for it.”

“That’s the answer to your question, my young friend. A person cannot be valued only from his ____44____.” Zun-Nun said gently. 

30. A. foolishly             B. Coldly                     C. proudly                    D. politely

31. A. Handing              B. Turning                    C. Joining                     D. Selling

32. A. for                     B. so                            C. but                           D. or

33. A. theatre                B. restaurant                  C. market                     D. school

34. A. with joy              B. for sure                    C. by mistake                D. in surprise

35. A. price                   B. table                        C. farm                        D. house

36. A. added                 B. returned                    C. showed                     D. Reported

37. A. pay                     B. make                        C. save                         D. get

38. A. good-bye            B. sorry                        C. yes                           D. cheers

39. A. short                   B. long                         C. Low                        D. high

40. A. through               B. to                             C. out of                       D. away from

41. A. you                    B. him                          C. it                             D. them

42. A. how many           B. how much                 C. how often                 D. how far

43. A. shape                  B. value                        C. design                      D. size

44. A. words                 B. coins                        C. ring                         D. dress

________ he driven more carefully, the accident would not have happened the other day.

A．Be

B．Had

C．Has

D．Would have

下列哪项不是深Ⅱ度烧伤的特点（）

A.创面可有或无水泡

B.创面痛觉迟钝

C.有时可见树枝状栓塞血管

D.如无感染，3～4周可愈合

E.愈合后多留有增生性瘢痕