赵某，女，52岁。半年前始觉下肢乏力，渐致不能任地，腰脊疲软，头晕耳鸣，口舌干燥，舌

张华同学在探究通过导体的电流与其两端电压的关系时，将记录的实验数据通过整理作出了如图4-5所示的图像，根据图像，下列说法错误的是(      )

A.通过导体A的电流与其两端的电压成正比   

B.导体A的电阻大于导体B的电阻

C.当在导体B的两端加上1V的电压时，通过导体B的电流为0.1A  

D.将A、B两导体串联后接到电压为3V的电源上时，通过导体的电流为0．2A

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

管得越少的政府，越是好政府。

什么叫保压制动？

铝合金发动机汽缸盖下平面的平面度每任意50mm×50mm范围内均不应大于（）mm。

A、0.015

B、0.025

C、0.035

D、0.030