单选题My experience______me that a background in pure science is an ideal preparation for doing business.

单选题A (more sophisticated) analysis shows that an expansion (rather than) a boycott of wood products is (that) we really ought to (be after).

单选题 He (was caught) (cheating) in the examination. If he had had (a tail), he (would put) it between his legs.

单选题How many volts of electricity can an electric eel emit?

单选题The Americans and the British not only speak the same language but also a large number of social customs.

单选题Our airplane was just besides the airport building. It did not look too strong to me, but I decided not to think about such things. We saw the baggage going out 1 it on trolleys and being loaded from 2 the aircraft. Next, three men and three girls, all in uniform, went over to the plane and 3 it. Over the loudspeakers we were 4 the plane was ready to leave and were asked to walk 5 to it. Everybody moved quickly in order to 6 the seats they wanted. I was 7 to get a seat near the tail, but the plane looked 8 inside than it had from outside. I fastened my seat belt 9 we took off and tried to 10 my nervousness. After an hour"s flying I 11 black clouds ahead through my window. An electric sign flashed 12 : "Fasten your seat belts, please," and one of the hostesses made a 13 request over the loudspeakers. She told us we were about to fly into a storm but 14 cheerfully there was nothing to worry 15 . Suddenly, the plane 16 all over, dropped about twenty feet and seemed to hang on one 17 . Then it rose twenty feet and there was a great flash of lightning. The three girls did their best to 18 pills for airsickness and 19 the passengers. Soon the sky became light again. The pilot had 20 to get above the storm.

单选题(To) the (best of) my knowledge, the climate in Arizona is better all (the) (year-round) than (any) other state.A. ToB. best ofC. year-roundD. any

单选题It wasn't an accident. He did it on______.

单选题I think he studies very hard, ______. A. does he B. doesn't he C. don't I D. do I

单选题The economic situation (will improve) given that there is (forecast to be) less unemployment and (closures) than (in previous years).

单选题Adecco is an organization which employs people ______.

单选题What does the author say about social networks?

单选题His father draws his ______ at the end of each month. A．salary B．wage C．fees D．payment

单选题When you pat your pet dog, he wags （摆来摆去）his tail. That is his way of saying that he lovesyou. And, if you pay attention, you will see that he uses his tail to say so many things. Every move-ment of t

单选题The earth revolves a little more rapidly ______ it is closer to the sun.

单选题She has ______ some brilliant scheme to double her income.