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对全国范围内统一样式的发票由（）确定。

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What did the UN call on nations to do about CO and other greenhouse gases in 1992？

A. to sign a new climate treaty at Rio
B. to draft an agreement among nations
C. to force the United States to reduce its emissions
D. to cut the release of CO and other gases

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Which of the following is nearest to Peter Bentley’s view on the winged robot？

A. the winged robot could never really by
B. the winged robot did not have a motor
C. the winged robot should go through further evolution before it could fly
D. the robot could by if it were lighter

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会计人员下列（）发生变更，可以不向会计从业资格管理机构办理从业档案信息变更登记。

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Common—cold Sense
You can’t beat it，but you don’t have to join it. Maybe it got the name “common cold” because it’s more common in winter．The fact is，though，being cold doesn’t have anything to do with getting one． Colds are caused by the spread of rhinoviruses，and，at least so far，medical science is better at+ telling you how to avoid getting one than how to get rid of one．
Children are the most common way cold viruses are spread to adults，because they have more colds than adults—an average of about eight per year．Why d0 kids seem so much more easily to get colds than their parents ？ Simple．They haven’t had the opportunity to become immune to many cold viruses．
There are more than 150 different cold viruses，and you never have the same one twice． Being infected by one makes you immune to it—but only it．
Colds are usually spread by direct contact，not sneezing or coughing． From another person’s hand to your hand and then to your nose or eyes is the most common route．The highest concentration of cold viruses anywhere is found under the thumbnails of a boy，although the viruses can survive for hours on skin or other smooth surfaces．
Hygiene is your best defense．Wash your hands frequently，preferably with a disinfectant soap，especially when children in your household have colds．
But even careful hygiene won’t ward off every cold. So，what works when a coughing，sneezing，runny nose strikes？
The o1d prescription of two aspirins，lots of water，and bed rest is a good place to start． But you’ll also find some of the fo1k remedies…worth Wing．Hot mixtures of sugar（or honey），lemon，and water have real benefits．
第 21 题 According to the essay，you may have a cold because．

A. the weather is too cold．
B. the spread of rhinoviruses gets people infected．
C. another person’s coughing passes the cold to you
D. you wash your hands too often．

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