单选题______ is the sending and receiving of the messages by computer. It is afast, low-cost way of communicating worldwide. A．LAN B．Post office C．E-Mail D．Interface

单选题She told us that she would not come to the meeting if it______the next day.

单选题You’ll have to pay for the holiday in ______ ，Tom．A．front B．advance C．ahead D．forward

单选题With lots of trees and flowers ______ here and there, the city looks very beautiful.A. having plantedB. plantedC. have been plantedD. to be planted

单选题Sustainable management is seen as a practical and economical way of protecting species from extinction. Instead of depending on largely ineffective laws against poaching(偷猎), it gives local people a good economic reason to preserve plants and animals. In Zimbabwe, for instance, there is a sustainable management project to protect elephants. Foreign tourists pay large sums of money to kill these animals for sports. This money is then given to the inhabitants of the area where the hunting takes place. In theory, locals will be encouraged to protect elephants, instead of poaching them because of the economic benefit involved. This sounds like a sensible strategy, but it remains to be seen whether it will work. With corruption in these developing countries, some observers are skeptical(怀疑的) that the money will actually reach the people it is intended for. Others wonder how effective the locals will be at stopping poachers. There are also questions about whether sustainable management is practical when it comes to protecting forests. In theory, the principle should be the same as with elephants—allow logging companies to cut down certain number of trees, but not so many as to completely destroy the forest. Sustainable management of forests requires controls on the number of trees which are cut down, as well as investment in replacing them. Because almost all tropical forests are located in countries which desperately need revenue from logging, there are few regulations and incentive to do this. One solution might be to certify wood which comes from sustainably managed forests. In theory, consumers would buy only this wood and so force logging companies to go "green" or go out of business. Unfortunately, unrestricted logging is so much more profitable that wood prices from managed forests would cost up to five times more—an increase that consumers, no matter how "green", are unlikely to pay.

单选题He speaks English ______ better than I. A．very B．much C．too D．so

单选题In another institute study, 35% of U. S. employees said they had health care responsibilities during the last year. It can be episodic, unpredictable and very______.

单选题On Sunday, I got to ______ to hear mass. A. church B. the church C. a church D. some church

单选题The manager didn't have time to read the report word for word: he just ______ it. A. skimmed B. observed C. overlooked D. glanced

单选题What does the word "a fish" (Para. 1) probably refer to?

单选题A year has ______ and there is no sign of the situation getting any better. A. emerged B. enclosed C. clasped D. expired

单选题Two days (past) (before he) realized that the task was (beyond) his (capacity). A. past B. before he C. beyond D. capacity

单选题Which of the following may be the probable title for the passage?

单选题There was a loud crash as the door broke, and in ______ the police.