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ICouldDo nothingBut____ there for the night
A
to stay
B
stay
C
staying
D
stayed
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试题答案：
B
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4. Using medicines derived from plants is a practice probably as old as humankind itself. Prehistoric peoples likely noted when consuming a particular plant part provided relief, such as willow bark "tea" lowering a fever. Sumatran (苏门答腊的) clay tablets engraved forty centuries ago list plant-based remedies for common ills, as do ancient writings from Egypt and China. In nineteenth-century United States, St. John's wort Echinacea were just two of many commonly used herbal remedies.Many modern medicines are synthetic versions of plant-derived "natural products." A compound from a periwinkle plant, for example, served as the basis for a powerful drug that fights leukemia (白血病). Poppies provide alkaloids such as morphine that are potent painkillers.In the U.S. today, one-third of all adults have tried herbal treatments, creating a multibillion-dollar market. The resurgence of interest in herbal medicine is largely due to the Dietary Supplements Health Education Act (DSHEA. of 1994, which expanded the definition of "dietary supplement" beyond essential nutrients to include "herbs botanicals," thus removing them from regulation as drugs. This designation means that labels can only mention ways that the herbal product can promote health, not cure disease. For example, valerian root "promotes restful sleep," St. John's wort "may help enhance mood," and Echinacea goldenseal "may help support the immune system." Many physicians biochemists argue that active ingredients in many herbal remedies are indeed drugs, should be regulated as such.It is wise to consult a physician when considering use of an herbal product. Even for a well-understood remedy such as cranberry extract, additional therapy may be required, or drug interactions a possibility. The law may not currently consider herbal ingredients to be drugs, but science indicates otherwise.
Thanks to the means of modern transportation communication, the world is getting smaller. The whole world community appears to be no more than a large global village, where the people of different nations come together with different cultural backgrounds values. 1.While engaging themselves in cultural exchange, they seek common development in a harmonious respectful relationship. 2.Cultural exchange is by no means a process of losing one's own culture to a foreign culture, but one of enriching each other's national cultures. Through cultural exchange, different cultures can absorb influence one another. We should adopt the principle of eliminating the false retaining the true, discarding the dross selecting the essential, exporting more importing the best, resisting corruptive influences. 3.I believe that different cultures can learn from each other's strengths to offset their own weaknesses complement one another. 4. While absorbing the essence of a foreign culture, we should not be content with imitation without creation. An obsession with simple imitation will sterilize creation, as such it will be impossible for us to scale new heights in art impossible to present to the world excellent works of our own creation. Simple imitation is by no means equivalent to novelty originality. On the contrary, novelty originality result from the combination of modern traditional styles, the combination of the distinctive features of foreign countries those of our own nation, the combination of artistry education. 5. The culture of a nation must withhold its own distinctive national characteristics in its extensive exchange with other cultures, make contributions to the development of human civilization.
Only after serious consideration ______ help that old man to his feet.(1分)
To succeed in a scientific experiment, _____.
8. A.over B. for C. after D. beyond
22.5 According to the passage, if you are learning the chemical amino acid (氨基酸）in biology, what image do you take its property “acid” which means sour into?(2分)
4.4 In which column of a magazine can you probably find this article?
10. (A)fee (B)money (C)note (D)tip
If I take this medicine twice a day it should____ my cold.
21.4 How did the officials at the testing company feel after they learned these “unteachable” students passed the Advanced Placement test in calculus?(2分)
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