单选题The contract is ______ unless it is officially stamped.

单选题The earthquake made the wall sink and start to ______.

单选题Woman: The clerk said that we had to wait until after lunch to pick up the papers. Man: But what are we going to do to kill time before then? Question: What does the man mean?

单选题The camel is ______ by the ability to go for quite a few days without water.

单选题A: How about going to see Maria tonight?B: ______

单选题The school arranged road trip appears to ______ the spring break.

单选题The tendency of the human body to reject foreign matter is the main Uobstacle/U to successful organ transplantation.

单选题The government ______ the foreign-owned corporations one after another.

单选题Man: I'm going to ask the neighbors to turn the music down. I can't hear myself think.Woman: Do you really think it makes any difference to them?Question: What does the woman mean?

单选题John did not like our plan, so he countered it with one of his own.

单选题Gardening is the cultivation of plants, usually in or near the home, as a hobby.

单选题A: ______ B: Yes, it's not like what the radio said at all.

单选题A: I’m so sorry. I shouldn’t have thrown your violin away. Why didn’t you tell me it was a birthdaypresent from your Dad? B:_____ What’s done is done.

单选题Man: If I don't find my wallet pretty soon, I have to report it stolen. Woman: Hold on! Before you call the campus security office, have you checked your Car, all your jacket pockets everywhere? Question: What does the woman suggest the man do?

单选题In order to understand the concept of infinity, we must think in much broader terms than we are accustomed to.

单选题{{B}}Passage Two{{/B}} Top marathon runners tend to be lean and light, star swimmers are long thighs with huge feet and gold medal weightlifters are solid blocks of muscle with short arms and legs. So, does your physical shape—and the way your body works—fit you for a particular sport? Or does your body develop a certain way because of your chosen sport? "It's about 55:45, genes to the environment," says Mike Rennie, professor of clinical physiology at Britain's University of Nottingham Medical School. Rennie cites the case of identical twins from Germany, one of whom was a long-distance athlete, the other a powerful sportsman, so, "They look quite different, despite being identical twins." Someone who's 1.5-meters tall has little chance of becoming an elite basketball player. Still, being over two meters tall won't automatically push you to Olympic gold." Unless you have tactical sense where needed, unless you have access to good equipment, medical care and the psychological conditions, and unless you are able to drive yourself through pain, all the physical strength will be in vain," said Craig Sharp, professor of sports science at Britain's Brunel University. Jonathan Robinson, an applied sports scientist at the University of Bath's sports development department, in southwest England, points to the importance of technique. "In swimming only 5-10 per cent of the propelling force comes from the legs, so technique is vital. " Having the right physique for the right sport is a good starting point. Seventeen years ago, the Australian Institute of Sport started a national Talent Search Program, which searched schools for 14- 16-year-olds with the potential to be elite athletes. One of their first finds was Megan Still, world champion rower. In 1987, Still had never picked up an oar in her life. But she had almost the perfect physique for a rower. After intensive training, she won gold in women's rowing in the 1996 Atlanta Olympics. Other countries have followed the Australian example. Now the explosion of genetic knowledge has meant that there is now a search, not just for appropriate physique but also for "performance genes. "

单选题The way to ______ new words varies from person to person, depending on many factors.

单选题Her story shows how gentle {{U}}stubbornness{{/U}} and an indifference to honors and fame can lead to great achievements.

单选题When McGee announced his departure, his manner can best be described as being ______

单选题The officer said to the soldier, "No matter what criteria are used in making the decision, a decision must be made."