2012职称英语综合类A级之完形填空

[职称英语考试理工类A级完形填空题]职称英语考试理工类A级完形填空题下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。Obtaining Drinking Water from Air HumidityNot a plant to be seen，the...+阅读

2012职称英语综合类A级之完形填空

阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案，涂在答题卡相应的位置上。

Cost as a Factor in Supply

In a purely petitive market, the supplier of goods and services has no control over the market price, because he produces too little to influence market conditions. With no difference between his products and the products___________ (51) his petitors, he will sell nothing if he charges above the market price and he will sell all if he charges at or___________(52) the market price. However, in considering the price, he must take the___________(53) of production into consideration. There are times when he may be willing to sell below his cost. This might happen when prices tumble for___________(54) he believes will be a short time. However, no business person can ___________(55) to lose money for a prolonged period. He must be constantly ___________(56) of his costs in relation to the market price if he is to pete successfully and earn a profit.

Many people he the impression that as production increases, costs per unit decrease. ___________(57) mass production has made this true in certain industries and at certain levels of production, ___________(58) logic and practical experiences he shown that costs per unit begin to rise beyond a certain level of production. Some economists___________(59) to this principle as the law of increasing costs.

The reason costs rise as production goes up is ___________(60). However, it is easy to recognize that as production goes up, the need for additional factors of production will also grow, ___________ (61) petitive bidding in the marketplace for the factors of production. If a producer needs ___________(62) skilled labor to produce more, and none of this labor is unemployed, the producer will he to get___________ (63) from other sources. This can be done by___________(64) higher wages. Higher bidding would also apply to the other factors of production. We must also recognize that not all labor is equally productive, ___________(65) not all land is equally fertile and not all ore (矿石) is equally rich in the mineral wanted.

51 A to B at C of D on

52 A below B beneath C over D above

53 A price B cost C worth D profit

54 A that B why C what D if

55 A afford B pretend C offer D decide

56 A sure B afraid C aware D suspicious

57 A Because B since C When D While

58 A both B neither C none D any

59 A resort B refer C turn D attend

60 A clear B simple C difficult D plex

61 A bringing B resulting in C including D carrying out

62 A less B numerous C more D many