单选题The guests were in a jubilant mood as the wedding began, and the whole atmosphere was very very pleasing.

单选题The word "inaccessible" underlined in Paragraph I is closest in meaning to ______.

单选题The examiner failed some candidates, and 15 of them being students without work experience.

单选题The children should say "thank you" to you when you gave them gifts.

单选题Your ______ is the round of things that you usually do each day. A. practice B. habit C. routine D. custom

单选题Is it possible that the entire tale is but a Ugarbled/U account of that voyage and Biarni another name for Leif?

单选题The author's attitude shown in this passage toward "backward" languages is ______.

单选题I, ______ , do not believe that the era of the pioneer is at an end; I only believe that the area for pioneering has changed.

单选题The first recorded use of natural gas to light street lamps it was in the town of Frederick, New York, in 1825.

单选题This majestical roof fretted with golden fire, why, it appeared nothing to me but a foul and {{U}}mortal{{/U}} congragation of vapours. A. pestilent B. violent C. protuberant D. provident

单选题I suppose the party ended in a friendly atmosphere, isn't it? A. don't I B. do I C. did it D. didn't it

单选题Upon completing his examination over the patient, the doctor offered his judgment of her conditions. A. of B. off C. about D. around

单选题Doctors warned sun-starved tourists who received too much sunlight that they were at {{U}}seriously{{/U}} risk than others of contracting skin cancer.

单选题The first year of the college life is a very complex ______ period, and the more fully the freshmen prepare for it, the better.

单选题A good dictionary will help you up in your reading.

单选题Earth observations should provide "value added" applications from existing environmental services, property title holders and process driven financial firms, while creating greater liquidity within the corporations that use them. A. as B. to C. for D. with

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.