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问题 解答题

黄州区是有名的“萝卜之乡”，在萝卜丰收的季节，某食品加工厂收购了15吨萝卜，若在市场上销售，每吨利润为500元；若将萝卜进行粗加工，每天可以加工2吨，每吨利润为1000元；若进行精加工，每天可以加工1吨，每吨利润为1400元。由于受条件限制，在同一天中只能采用一种方式加工，并必须在12天内全部加工完毕。为此该厂设计了三种加工方案：

方案一：将萝卜全部进行粗加工；

方案二：尽可能多的对萝卜进行精加工，其余的在市场上直接销售；

方案三：部分萝卜进行精加工，其余的萝卜进行粗加工，并恰好用12天完成。

你认为选择哪种方案获利最多？为多少？试说明理由。

答案

解：方案一：<12，故15×1000=1.5×104(元) 　　

       方案二：1400×12+500×(15-12)=1.83×104(元) 　　

       方案三：设精加工x天，则　　

                    1·x+2·(12-x)=15，　　∴x=9，　　

                      故1400×9+1000×2×3 　　

                       =1.26×104+0.6×104 　　

                       =1.86×104(元) 　　

  答：第三种方案获利最多，为1.86×104元。

单项选择题

贷款质押是借款人以( )作为债权的担保。

A．第三方保证人以自身的财产
B．财产
C．不动产
D．动产或权力
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单项选择题

Questions 56-60 are based on the following passage.
The Frugal Gourmet Cooks American
by Jeff Smith
Our real American foods have come from our soil and have been used by many groups—those who already lived here and those who have come here to live. The Native Americans already had developed an interesting cuisine using the abundant foods that were so prevalent.
The influence that the English had upon our national eating habits is easy to see. They were a tough lot, those English, and they ate in a tough manner. They wiped their mouths on the tablecloth, if there happened to be one, and they ate until you would expect them to burst. European travelers to this country in those days were most often shocked by American eating habits, which included too much fat and too much salt and too much liquor. Not much has changed! And, the Revolutionists refused to use the fork since it marked them as Europeans. The fork was not absolutely common on the American dinner table until about the time of the Civil War, the 1860s. Those English were a tough lot.
Other immigrant groups added their own touches to the preparation of our New World food products. The groups that came still have a special sense of self-identity through their ancestral heritage, but they see themselves as Americans. This special self-identity through your ancestors who came from other lands was supposed to disappear in this country. The term melting pot was first used in reference to America in the late 1700s, so this belief that we would all become the same has been with us for a long time. Thank goodness it has never worked. The various immigrant groups continue to add flavor to the pot, all right, but you can pick out the individual flavors easily.
The largest ancestry group in America is the English. There are more people in America who claim to have come from English blood than there are in England. But is their food English Thanks be to God, it is not! It is American. The second largest group is the Germans, then the Irish, the Afro-Americans, the French, the Italians, the Scottish, and the Polish. The Mexican and American Indian groups are all smaller than any of the above, though they were the original cooks in this country.

Which of the following statements is NOT true

A．English people had bad table manners.

B．American food was exclusively unique in its flavors and varieties.

C．American diet contained a lot of fat, salt and liquor.

D．Europeans were not at all accustomed to the American way of eating.
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