单选题A young man sees a sunset and．unable to understand or express the emotion that it ______ in him，concludes that it must be the gateway to a world that lies beyond． A．reffects B．retains C．rouses D．radiates

单选题Both a person's heredity and his environment help to shape his character.

单选题The Frugal Gourmet Cooks Americanby 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 theft 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.

单选题The great advance (91) rocket theory 40 years ago showed that liquid-fuel rockets were far (92) in every respect to the skyrocket with its weak solid fuel, the only kind of rocket then known. (93) , during the last decade, large solid-fuel rockets with (94) fuels about as powerful as liquid fuels have (95) their appearance, and it is a favorite layperson's question to (96) which one is "better". The question is meaningless. (97) might as well ask whether a gasoline or a diesel engine is "better". It all (98) on the purpose. A liquid-fuel rocket is complicated, (99) has the advantage that it can be controlled beautifully. The burning of the rocket engine can be stopped completely; it can be reignited when (100) . (101) , the thrust can be made to vary by adjusting the speed of the fuel pumps. A solid-fuel rocket, on the other hand, is rather (102) in construction, (103) hard to build when a really (104) size is desired. But once you have a solid-fuel rocket, it is ready for action (105) very short notice. A liquid-fuel rocket has to be fueled first and cannot be (106) readiness for very long after it has been fueled. (107) , once a solid-fuel rocket has been ignited, it will keep burning. It cannot be stopped and reignited (108) desired (it could conceivably be stopped and reignited after a pre-calculated time of burning has elapsed, and its thrust cannot be varied. Because a solid-fuel rocket can be kept ready for a long time, most military missiles (109) solid fuels, but human-piloted spaceflight needs the fine adjustments that can (110) be provided by liquid fuels.

单选题An overwhelming richness of vegetation may have caused the level of oxygen, to rise above today's ______ , with a corresponding depletion of carbon dioxide. A．concentration B．saturation C．satiation D．plenitude

单选题Over a very large number of trials, the probability of an event ______ is equal to the probability that it will not occur. A. occurring B. occurred C. occurs D. occur

单选题His complaint about our management was not without reasons .

单选题The earliest form of artificial lighting was fire, which also provided warm and protection.

单选题The president said that he will do everything he could to be ______ of the faith and trust of the people and to honour the powerful example of Senator Daniel Patrick Moynihan.

单选题Benjamin Franklin was remembered for his good judgement. A. vigilance B. guilty C. sagacity D. resolution

单选题 I want to divide human understanding into two kinds—classical understanding and romantic understanding. In terms of ultimate truth, a distinction of this sort has little meaning, but it is quite legitimate when one is operating within the classic mode used to discover or create a world of underlying form. The terms classical and romantic, as Phaedrus used them, mean the following: A classical understanding sees the world primarily as underlying form itself. A romantic understanding sees it primarily in terms of immediate appearance. If you were to show an engine or a mechanical drawing or electronic scheme to a romantic, it is unlikely he would see much of interest in it. It has no appeal because the reality he sees is its surface. Dull, complex lists of names, lines and numbers. Nothing interesting. But if you were to show the same blueprint or give the same description to a classical person, he might look at it and then become fascinated by it because he sees that within the lines and shapes and symbols is a tremendous richness of underlying form. The romantic mode is primarily inspirational, imaginative, creative, intuitive. Feelings rather than facts predominate. "Art" when it is opposed to "Science" is often romantic. It does not proceed by reason or by laws. It proceeds by feeling, intuition and esthetic conscience. In the northern European cultures the romantic mode is usually associated with femininity, but this is certainly not a necessary association. The classic mode, by contrast, proceeds by reason and by laws—which are themselves underlying forms of thought and behavior. In the European cultures it is primarily a masculine mode and the fields of science, law and medicine are unattractive to women largely for this reason. Although motorcycle riding is romantic, motorcycle repair and maintenance are purely classic. The dirt gives it such a negative romantic appeal that women never go near it.

单选题Although South Carolina mineral resources are abundant, not all of them can be mined {{U}}lucratively{{/U}}. A. profusely B. profitably C. conveniently D. optionally

单选题It was too late to ______ of the contract. A. back out B. back down C. back up D. back away

单选题Until now the ______ of life is still beyond the knowledge of most common folks: few people know how and in what way the human organs are working and functioning. A. wheels B. fate C. reels D. parts

单选题Japan and the newly industrialized countries are passing labor-intensive {{U}}sects as{{/U}} garment-making over to less developed nations and moving into advanced technology and services.

单选题We should let more young parents and their children can enjoy scientific early education .

单选题Scarecely had the van turned the corner than the mirror came off.

单选题It is {{U}}a market which sales value might be{{/U}} more than 10 billion yuan.

单选题The children made so much ______ that Mrs. Green had to spend three days cleaning up afterwards.

单选题Some children display an unacceptable curiosity about every new thing they encounter.