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能辨邪正虚实，胃气有无的是( )
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下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。第一篇Hair Detectives Scientists have found a way to use hair to figure out where a person is from and where that person has been. The finding could help solve crimes, among other useful applications. Water is central to the new technique. Our bodies break water down into its parts: hydrogen(氢)and oxygen. Atoms (原子) of these two elements end up in our tissues and hair. But not all water is the same. Hydrogen and oxygen atoms can vary in how much they weigh. Different forms of a single element are called isotopes(同位素). And depending on where you live, tap water contains unique proportions of the heavier and lighter isotopes of hydrogen and oxygen. Might hair record these watery quirks(古怪举动；怪僻). That’s what James R. Ehleringer, an environmental scientist at the University of Utah in Salt Lake City, wondered. To find out, he and his colleagues collected hair from barbers and hair stylists(发型师)in 65 cities in 18 states across the United States. The researchers assumed that the hair they collected came from people who lived in the area. Even though people drink a lot of bottled water these days, the scientists found that hair overwhelmingly(压倒性地) reflected the concentrations of hydrogen and oxygen isotopes in local tap water. That’s probably because people usually cook their food in the local water. What’s more, most of the other liquids people drink including milk and soft drinks contain large amounts of water that also come from sources within their region. Scientists already knew how the composition of water varies throughout the country. Ehleringer and colleagues combined that information with their results to predict the composition of hair in people from different regions. One hair sample used in Ehleringer’s study came from a man who had recently moved from Beijing, China, to Salt Lake City. As his hair grew, it reflected his change in location. The new technique can’t point to exactly where a person is from, because similar types of water appear in different regions that span a broad area. But authorities can now use the information to analyze hair samples from criminals or crime victims and narrow their search for clues(线索). Which of the following statements is meant by the writer
王某携全家老小赴深圳经商，于是将几件不易携带但又较为贵重的家具交给邻居周某保管，其中包括价值4000元的全自动洗衣机一台。与此同时，周某委托王某将自己一个祖传的手镯带到深圳去卖掉，价格以市场价为准。王某到达深圳后，经调查，该手镯的市场价为1万元，正当王某准备拿到市场上卖掉时，其好友秦某前来探望，并发现了该手镯。王某告知了该手镯的情况，秦某表示特别喜欢该手镯，请王某以5000元的价格卖给他，并许以好处。王某考虑再三，答应了秦某的要求。周某后来得知了此事，遂要求王某赔偿损失，但王某坚称5000元即是市场价格，拒绝赔偿。周某一气之下将王某的洗衣机以自己的名义卖给了不知情的谭某，谭某支付了价款并实际占有了该洗衣机。问题： 周某将王某的洗衣机卖给谭某的行为法律效力如何谭某能否取得洗衣机的所有权？
A. teach children to be intelligent B. whatever stimulation has been received from the environment C. and because of the lack of communication with his classmates D. a predictor of children’s future learning E. taught to be more intelligent F. language and psychological aspects of the parent-child relationship We can ______ in the same way that we can teach them reading.
If a mother pushes her small son in a swing, giving only a light force each time he returns, eventually he will be swinging quite high. The child can do this for himself by using his legs to increase the motion, but both the mother’s push and the child’s leg movements must occur at the proper moment, or the extent of the swing will not increase. In physics, increasing the swing is increasing the amplitude; the length of the rope on the swing determines its natural oscillation period. This ability of an object to move periodically or to vibrate when stimulated by a force operating in its natural period is called resonance. Resonance is observed many times without consciously thinking about it; for example, one may find an annoying vibration or shimmy in an automobile, caused by a loose engine mount vibrating with increasing amplitude because of an out-of-round tire. The bulge on the tire slaps the pavement with each revolution; at the natural resonance point of the engine mount, it will begin to vibrate. Such vibrations can result in considerable damage if allowed to persist. Another destructive example of resonance is the shattering of a crystal goblet by the production of a musical tone at the natural resonant point of the goblet. The energy of the sound waves causes vibration in the glass; as its amplitude increases, the motion in the glass exceeds the elasticity of the goblet, and it shatters. An instrument called a tachometer makes use of the principle of resonance. It consists of many tiny bars, loosely fastened together and arranged so that each bar can slide independently of the others. Movement of the bars causes changes in a dial. When placed next to a rotating motor or engine, the tachometer picks up slight vibrations which are transferred to the resonant bars. These bars begin to move, and the resulting dial may be read to find the revolutions per minute of the motor very quickly. The distance a swing moves from its resting position is called its ______.
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