单选题Hardly had the thief seen the policeman than he ran away. A. had B. seen C. than D. ran

单选题The government issued a warning to local companies that all waste must be disposed of ______ or they will face heavy fines. A. corrects B. correcting C. correction D. correctly

单选题Only native-born citizens are eligible for the U.S. Presidency.

单选题He inspired many young people to take up sports.

单选题If there were no hungry problem，the people of the world__________a much happier time in their daily life．

单选题Is this the factory ______ you visited the other day? A. that B. where C. in which D. the one

单选题JULIE's SNACK BAR The Best New Restaurant Town !! 1145 Whittaker Road Delicious food, low prices! Check out these great deals! Lunch Special #1: I hamburger or hot dog, I order of French fries, and 1 drink for only $4.25! Lunch Special #2: 2 hamburgers or barbecue plates, 2 orders of French fries, and 2 drinks for only $7.50! Family Dinner Special: 4 sandwiches, hamburgers, or barbecue plates and 4 drinks for only $15.991 (Deals valid Monday through Friday, 11:00-14:00 for lunch and 17:00-19:30 for dinner.)

单选题The article on the importance of organization suggests that people who have a______ structured daily schedule will accomplish the most.

单选题The smuggler in many ways is just another international businessman and his turnover would do credit to many international corporations．His business happens to be illegal and risky，but look at the stakes involved：$5 billion worth of heroin smuggled into the United States each year，and$1．5 billion in gold passing annually along smuggling pipelines to India and Indonesia，to France and Morocco，to Brazil and Turkey．Perhaps half of all the watches made in Switzerland reach their eventual wearers by some back door．Most of this illicit trade is carried on with all the efficiency of any multinational company．Entirely legitimate businesses．such as a travel bureau or an import-export agency，are also often fronts for smuggling organizations．One of the world’s largest gold smugglers also owned and operated the franchise for a leading make of British cars in a small Middle Eastern country．He made a good profit from both activities． A smuggling syndicate operates much like any other business．The boss is really a chief executive．He makes all the plans，establishes international contacts，and thinks up the smuggling routes and method but remains aloof from actual operations．He is aided by a handful of managers looking after such specialties as financing，travel(one reason why many smuggling syndicates find it handy to have their own travel agency)，the bribing of airline or customs officials，and recruitment of couriers．or mules as they are called．There may also be someone in charge of local arrangements in the countries to which the smuggled goods is going． Another similarity between legitimate business and its illegal counterpart is price fluctuation．Just as the prices of products traded legally vary with quality and market conditions such as supply and demand，so do the prices of goods go up and down in the smuggling trade．Consider the price of drugs．Heroin and cannabis。in whatever form or by whatever name，cone in several grades，each with a going price．The wholesale price at which big dealers sell to big dealers is less than the street price．When the authorities are successful in reducing the supply buy seizures，the price of all grades rises．

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问答题Following any virus attack, the human body builds up antibodies which confer immunity to that strain of virus, but a virus with the capacity to change its character is able to by-pass this protection. ______

问答题Normally, in tropical regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation.______

问答题Although much remains to be learned, the story of the Great Ice Age is being unfolded through the efforts of specialists in many fields. Recording field observation, new theories and methods, and worldwide studies of existing glaciers are bringing a clearer understanding of the Great Ice Age.______