单项选择题

A．She makes good use of an ad to convince her father.
B．She is easily fooled by ads.
C．She didn’t play much sports before.
D．She wants her father’s opinion about Adidas shoes.
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问答题
Although no complete cure was ever found for people who had contracted the disease, a method of protecting people against catching it was discovered in 1796 by a doctor named Edward Jenner. He found that if he vaccinated people with the germs of a disease called cowpox (similar to smallpox but not nearly as dangerous), their bodies would develop an immunity which would prevent them from catching smallpox. This was a major step forward but did not lead to a dramatic decline in the spread of the disease throughout the world. Medical ideas spread slowly, communications were poor, the virus for vaccinations had to be developed carefully and there was resistance to the idea of vaccination. Even England, where vaccination had been discovered, suffered smallpox epidemics in 1893 and 1902. It was not until the 20th century that some countries began to overcome the disease by using improved vaccination viruses and better medical techniques. But then, as rapid air travel became possible, the problem worsened for travelers could swiftly carry the disease from country to country.
问答题
狐假虎威 虎求百兽而食之，得狐。狐曰，“子无敢食我也!天帝使我长百兽，今子食我，是逆天帝命也。子以我为不信，吾为子先行，子随我后，观百兽之见我而敢不走乎”虎以为然，故遂与之行，兽见之皆走。 虎不知兽畏己而走也，以为畏狐也。
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