Many typically "American" characteristics are a result of value. 【M1】______ There is a remarkable ethic diversity in the US. Among its population 【M2】______ of 300 million, 73% is White, 12% African American, 8% Hispanic. Many Americans dont like generalizations being made about them because they see themselves as very unique. Individualism is probably the most highly esteemed value in the American culture, and Americans may feel comfortable when given more help than they need, because 【M3】______ they see dependency as weakness. The focus on the individual has led to a more informal society. For example, phrases like "drop by any time" are other ways of saying goodbye. Honesty and frankness is more【M4】______ important to Americans than "saving face", and they may bring up impolite conversation topics which you may find embarrassed, 【M5】______ controversial or even offensive. This encourages them to dissolve misunderstandings themselves. Some behaviours have culturally associated to straightforwardness. For example, a firm handshake is 【M6】______ often interpreted as sign of sincerity, so is direct eye contact. To most【M7】______ Americans, honesty is always preferred for politeness. Punctuality is 【M8】______ considered an important attribution, and you will need to offer an 【M9】______ apology and explanation if you are more than 15 minutes late. Americans also value achievement and competition, but sports awards【M10】______ are often displayed in their homes.
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The groundwater system is similar to a river system. Therefore, instead of having channels that 【M1】______ connect different parts of the drainage basin, the groundwater system has connecting pores. Some soils and rock have connecting pores where water can move 【M2】______ through. Soils and rock are permeable and water can 【M3】______ pass through them this way. Sandstone is a common permeable rock. Soil or rock that have many large connected pores 【M4】______ is very permeable. Water can pass through it easily. Soil or rock that has few or small pores is not permeable 【M5】______ because water cant easily pass through. Some material, such as clay, has very small pores or no pores at all. Water cant pass through this impermeable material. How deep into Earths crust do you suppose groundwater can go? That depends on the permeability of soil and rock. Groundwater will keep going to lower 【M6】______ elevations until it reaches a lay of impermeable rock. 【M7】______ When this happens, the impermeable rock acts like a dam and the water cant move down any deep. So, it 【M8】______ begins filling up the pores in the rocks over the 【M9】______ impermeable layer. A layer of permeable rock that transmits water freely is an aquifer. The area where all of the pores in the rock are completely filled in water is 【M10】______ the zone of saturation. The upper surface of this zone is the water table.
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下列说法与药物代谢不相符的是
A. 药物代谢是在酶作用下将药物转化成极性分子,再通过正常系统排泄至体外的过程
B. 药物通过吸收、分布主要以共价键结合物的形式排泄
C. 减少药物的解离度使其生物活性增强并不能够有利于代谢
D. 药物代谢是人体对自身的一种保护功能
E. 药物代谢就是将具有活性的药物经结构修饰变为无活性的化合物
芳环药物氧化代谢的规律是以生成哪种物质的代谢为主
A. 以生成羟基的代谢为主
B. 以生成酚的代谢为主
C. 以生成羧基的代谢为主
D. 以生成苄醇的代谢为主
E. 以生成醚的代谢为主
One truly remarkable achievement that sets us humans apart the 【M1】______ rest of the animal kingdom is our creation and use of language. Although animals can communicate with one another, their limited number of calls and gestures are merely isolating signals that convey 【M2】______ very specific messages(for example, a greeting, a threat, summons to【M3】______ congregate)in much same way that single words or stereotyped phrases【M4】______ do in a human language. On contrast, human languages are amazingly 【M5】______ flexible and producing. From a small number of individually 【M6】______ meaningless sounds, a person who is proficient in a language can generate thousands of meaningful auditory patterns(syllables, words) that can then be combined according to a set of grammatical rules to produce an infinite number of messages. Language is also an inventive tool. Most of what people say or hear in any given situation is not merely a repetition of what they have said or heard before; speakers create novel utterances on the spot, and the topics they talk about may have nothing to do with his current situation or the stream of ongoing 【M7】______ events. Indeed, language is the only form. of communication by which we can easily produce a variety of messages that are blatantly untrue (as in a lie or a sarcastic utterance)and otherwise figurative in nature 【M8】______ (as in the simile "Shes like a breath of fresh air"). Yet, creative as we may be in generating new messages, but other people who know the 【M9】______ language will be able to understand any and all of our ideas as long as each of our statements adhere to the rules and conventions of the 【M10】______ language we are speaking.
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