单选题A survey was carried out on children’s attitudes to violence on television, _____ was surprising.

单选题"High tech" and "state of the art" are two expressions that describe the modem technology. High tech is just a shorter way of saying high technology. And high technology describes any invention, system of device that uses the newest ideas or discoveries of science and engineering. What is high tech? A computer is high tech. So is a communications satellite. A modem manufacturing (生产) system is surely high tech. High tech became a popular expression in the United States during the early 1980"s. Because of improvements in technology, people could buy many new kinds of products in American stores, such as home computers, microwave ovens, etc. "State of the art" is something that is as modem as possible. It is a product that is based on the very latest methods and technology. Something that is "state of the art" is the newest possible design or product of a business or industry. A state of the art television set, for example, uses the most modem electronic design and parts. It is the best that one can buy. "State of the art" is not a new expression. Engineers have used it for years, to describe the best and most modem way of doing something. Millions of Americans began to use the expression in the late 1970"s. The reason was the computer revolution. Every computer company claimed that its computers were "state of the art". Computer technology changed so fast that a state of the art computer today might be old tomorrow. The expression "state of the art" became as common and popular as computers themselves. Now all kinds of products are said to be "state of the art".

单选题All life on the earth ______ on the sun.

单选题Stacey: Sue, can you drive Jane and me to the doctor on Monday? Sue: Sure. ______ when you need help.

单选题The professor wrote a letter of _____ for his student who was applying to a famous company for the post of a secretary

单选题The news media ______radio, television and newspapers.

单选题In Western culture, an engagement begins with "yes" to a simple question: "Will you marry me?" These heart-stopping words often come with a beautiful diamond ring. The man making the proposal may get down on one knee. In fact, men have relied on this simple, romantic method of proposing marriage for years. Today, this is no longer true for everyone. Consider how Justin Firestone proposed to Natalie Abreu. The couple took a helicopter tour over the black sands of Honomanu Bay, Hawaii. Suddenly Abreu saw "Will you marry me, Natalie?" spelled out below with coconuts. Her answer was an astonished "Yes!" Firestone"s proposal took weeks of planning and help from a professional. But for men like him, the effort put into the proposal was worth it. Many guys want to show how serious they are about marriage through an impressive proposal. Some even want to give their future brides something to brag about . Public proposals—at sports games, concerts and other events—are common. But some men don"t settle for their proposal scrolling (滚动) across a big screen before thousands. Millions saw Joe Uva"s proposal on a reality TV show. His girlfriend, Laura O" Donnell, walked into an office and saw friends and family holding flowers. With the cameras rolling, Uva walked out from among them to propose. O" Donnell said yes, to the relief of Uva and his audience. Other men have chosen proposals that reflect the couple"s unique relationship. Such proposals take place at a favorite restaurant or involve a shared hobby. Bernie Peng, for example, programs video games, and Tammy Li enjoys playing them. When Peng proposed to Li, he made a small change in her favorite game. When she played it, a ring and marriage proposal appeared. They recently got married! These men were confident they would get the answer they wanted. But that"s not the point: Creative proposals leave memories to be cherished.

单选题Speaker A: I haven"t seen you for ages. You haven"t been sick, have you? Speaker B: ______

单选题We had a party last week, and it was a lot of fun, so let"s have ______ one.

单选题A variety of factors ________to the final resolution of the economic conflicts between the two countries.

单选题This composition is good ______ some spelling mistakes. A. except B. besides C. except that D. except for

单选题Tony is very disappointed ______ the results of the exam.

单选题The tail is to a fish __________ the rudder is to a ship．

单选题Jack: Hey, how are you, Susie? Gee, we haven"t seen each other in... it must be close to three years! Susie: ______

单选题He had trouble (finding out) (that) the capital of the country (lay in) the coastal area or (in the mountains.)A. finding outB. thatC. lay inD. in the mountains

单选题I am not sure whether we can give the right advice ______ emergency.

单选题______ all the money people here spend eating out, restaurants' profit is still below five percent. A. Despite B. Thanks to C. Since D. Like

单选题Clerk: Excuse me, this is a non-smoking place. Customer: ______.

单选题The manager urged his staff not to ______ the precious opportunity.