单选题All man must die, but death can vary ______ its significance.

单选题It was not ______ 1982 that he went back to America.

单选题A student is (allowed) to (enter into) this room (only if) a teacher (has given) permission.

单选题Please ______ your telephone message by writing to me. A. confirm B. concede C. confer D. conceal

单选题Because of many mistakes, she was made______these letters again.A. typeB. to typingC. typedD. to type

单选题John said his mother would buy him a five-speeds racing bicycle for his sixteenth birthday.

单选题The role of women in Britain has changed a lot in this century, (56) in the last twen-ty years. The main change has been (57) giving women greater equality with men. (58) to the beginning of this century, women seem to have had (59) rights. They could not vote and were kept at home. (60) , as far as we know, most women were happy (61) this situation. Today, women in Britain certainly (62) more rights than they used to. They were (63) the vote in 1919. In 1970 a law was passed to give them an equal (64) of wealth in the case of divorce, (65) the Equal Pay Act gave them the right (66) equal pay with men for work of equal value in the same year.Yet (67) these changes, there are still great differences in status between men and women. Many employers seem to (68) the Equal Pay Act, and the average workingwomen is (69) to earn only about half (70) a man earns for the same job. (71) a sur-vey, at present, only one-third of the country's workers are (72) women. This small percentage is partly (73) a shortage of nurseries. If there were (74) nurseries, twice as many women (75) go out to work.

单选题What makes the space shuttle _________ is that it takes off like a rocket but lands like an airplane.

单选题Judging from his manners at the party, he doesn't seem ______ much education.

单选题She will never forget the day ______ she joined the party. A. when B. which C. that D. where

单选题Tom is ______ anyone in our class in sports. A. superior than B. more superior than C. superior to D. more superior to

单选题How can a single postage stamp be worth $ 16,800? Any mistake made in the printing of a stamp raises its value to stamp collectors. A mistake on one inexpensive postage stamp has made the stamp worth a million and a half times its original value. The mistake was made more than a hundred years ago in the British colony of Mauritius, a small island in the Indian Ocean. In 1847, an order for stamps was sent to a London printer--Mauritius was to become the fourth country in the world to issue stamps. (32) Before the order was filled and delivered, a ball was planned at Mauritius' Government House, and stamps were needed to send out the invitations. A local printer was instructed to copy the design for the stamps. He accidentally inscribed the words "Post Office" instead of "Post Paid" on the several hundred stamps that he printed. Today there are only 26 of these misprinted stamps left-fourteen One-Penny OrangeReds and twelve Two-penny Blues. Because of the Two-penny Blues' rareness and age, collectors have paid as much as $ 16,800 for it.

单选题I could not afford to rent a house like that, ______ it.

单选题All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mankind. Each year it provides men with two hundred million tons of grain and nearly ten million tons of wood, coal, oil, natural gas, and all other fuels are stored energy from the sun. Some was collected by this season"s plants as carbon compounds. Some was stored by plants and trees ages ago. Even waterpower derives from the sun. Water turned into vapor by the sun fails as rain. It courses down the mountains and is converted to electric power. Light transmits only the energy that comes from the sun"s outer layer, and much of this energy that is directed towards the earth never arrives. About nine tenths of it is absorbed by the atmosphere of the earth. In fact, the earth itself gets only one half millionth of the sun"s entire output of radiant energy.

单选题It was (when) she was (about) (to go) to bed (while) the telephone rang.

单选题Ever since Picasso's painting went on exhibit, there ______ large crowds at the museum every day.A. had beenB. have beenC. has beenD. are

单选题Which of the following statements is NOT hue according to the passage?