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以下哪个不是msf的基本常用命令？ （）
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羧酸具有酸性的主要原因是羧基结构中存在
下列化合物酸性最强的是?
1、Part III Vocabulary and StructureDirections:There are 20 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE answer that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the centre.1. The cotton plant manufactures fluffy pods and the fluffy pods contain long and short fibers ________ each seed.A) attached toB) related withC) preserved inD) acted on2. Professor Smith, many students want to see you. ________ they wait here or outside?A) ShallB) WillC) DoD) Are3. ________ I wanted to find out first was how long it would take to complete the bridge.A) ThatB) ThoseC) WhatD) Which4. Our suspicions were first __________ when we heard some strange noises in the woods.A) raisedB) roseC) aroseD) aroused5. So in the afternoon, with nothing ______, I went on a round of the bookstores.A) to doB) doingC) doneD) to be done6. Jack is a school child who is ______ what he wants from life and desperately needs someone to help him through the confusion.A) aware ofB) unconscious ofC) uncertain ofD) unwilling to know7. ______ telling her again since she won't listen to it?A) What's the point ofB) How's the point ofC) Where's the point inD) Is there the point for8. Medical scientists expect it will be many years _________ cancer is conquered.A) beforeB) whenC) sinceD) after9. It may rain; you'd better take an umbrella just ________.A) in caseB) in the caseC) in eventD) in the event10. A man who could ________ such treatment was a man of remarkable physical courage and moral strength.A) bear onB) stand up toC) insist onD) persist in
Language is a way to communicate with each other. We started to learn language when we were born. However, people are used to speaking their native language, so immigrants are having many problems between the first generation and the second generation because they don't have the same native language. Also, the second generation is losing their identity. Especially in America, there are many immigrants that came from different countries to succeed in the States. Because they suffer in lots of areas such as getting a job and trying to speak English, they want their children to speak English, not only at school, but also at home in order to be more successful. Because of this situation, their children are losing their ethnic identity and, even more, they are ignoring their parents whose English is not very good.I think most immigrants are trying to preserve their native language in their new country, but this doesn't help very much in getting a good job. My aunt didn't teach Korean to her children in order to help them succeed in the US; she did so, hopefully, to help them establish a Korean identity. Though the second generation is born in the new country, they often get confused about their identity. My cousins told me that when they visited Korea a few years ago, they felt different from other Koreans. They could even feel it just strolling around the street because they wore different clothes.We must realize that language is important and valuable for many reasons. Immigrants should make an effort not to be ignored by their children and to make their children understand their heritage by teaching them the parents' language. This is important in helping the second generation establish their identity.26.Which people are having trouble with language?A. Natives.B. People of the 2nd generation.C. People when born.D. Immigrants.27.Why are children ignoring their parents?A. Children have lost their identity.B. Parents cause children to suffer.C. They speak different languages.D. They have different job levels.28.The author's aunt taught Korean ________.A. so she could preserve her languageB. so she would have a job in AmericaC. to help children succeed in their new countryD. to help children keep their Korean identity29.The author's cousins felt ________.A. they were not similar to people in KoreaB. they could not get a job in AmericaC. it was all right to look and feel differentD. it was important to keep their identity30.A proper title for this passage is ________.A. The Identity of the Second GenerationB. Korean Problems in AmericaC. Learning a New Language in the USD. Keeping Your Culture in a New Land
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