They called in an electrician _____ he could put a finger on the cause of the short circuit.

单选题

They called in an electrician _____ he could put a finger on the cause of the short circuit.

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单选题

_____ that they had made an important discovery in sclence.

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单选题

On an annual （ ）, house prices in Scotland are now only 1% lower than they were a year ago, but they are 8% down in Northern Ireland.

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单选题

DThe Red Cross is an international organization which cares for people who are in need of help.A man in Paris hospital who needs blood，a woman in Mexico who was injured in an earthquake，and a family in India that lost their home in a storm may all be aided by the Red Cross.The Red Cross exists in almost every country around the globe.The world Red Cross organizations are sometimes called the Red Crescent，the Red Mogen David，the Sun，and the Red Lion.All of these agencies share a common goal of tr

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材料题

s.Fluids in the stomach then increase the pain of an ulcer.How does a person know he or she has an ulcer?Doctors say most people with ulcers feel a burning pain in their chest or stomach.This pain often is called heart burn.It usually happens before eating or during the night.It causes some people to lose their desire to eat,or they are unable to keep food in their stomachs.Doctors believed that ulcers were caused by unusually strong stomach fluids,which damaged stomach tissue.Now they have dis

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