对词的理性意义的分项说明被称为____。[2014年真题]
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（）是学习音乐的基础性内容，是培养学生音乐审美能力的重要途径。
A、艺术欣赏
B、德育教学
C、审美
D、表现
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若DNA分子的某个基因含240个脱氧核苷酸和80个鸟嘌呤，则该片段转录成信使RNA中，含有的尿嘧啶数为（）
A、0～40个
B、1～40个
C、40个
D、80个
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中国画中的用笔分为中锋和（）。
A、直锋
B、侧锋
C、斜锋
D、逆锋
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Passage 1Khalida's father says she's 9 or maybe 10. As much as Sayed Shah loves his 10 children, the functionally illiterate Afghan farmer can't keep track of all their birth dates. Khalida huddles at his side, trying to hide beneath her chador and headscarf. They both know the family can't keep her much longer. Khalida's father has spent much of his life raising opium, as men like him have been doing for decades in the stony hillsides of eastern Afghanistan and on the dusty southern plains. It's the only reliable cash crop most of those farmers ever had. Even so, Shah and his family barely got by: traffickers may prosper, but poor farmers like him only subsist. Now he's losing far more than money."I never imagined I'd have to pay for growing opium by giving up my daughter,"says Shah.The family's heartbreak began when Shah borrowed S2,000 from a local trafficker, promising to repay the loan with 24 kilos of opium at harvest time. Late last spring, just before harvest,a government crop-eradication team appeared at the family's little plot of land in Laghman province and destroyed Shah's entire two and a half acres of poppies. Unable to meet his debt, Shah fled with his family to Jalalabad, the capital of neighboring Nangarhar province. The trafficker found them anyway and demanded his opium. So Shah took his case before a tribal council in Laghman and begged for leniency. Instead, the elders unanimously ruled that Shah would have to reimburse the trafficker by giving Khalida to him in marriage. Now the family can only wait for the 45-year-olddrugrunner to come back for his prize. Khalida wanted to be a teacher someday, but that has become impossible."It's my fate,"the child says.Afghans disparagingly call them "loan brides"-daughters given in marriage by fathers who have no other way out of debt. The practice began with the dowry a bridegroom's family traditionally pays to the bride's father in tribal Pashtun society. These days the amount ranges from $3,000 or so in poorer places like Laghman and Nangarhar to S8,000 or more in Helmand, Afghanistan's No.I opium-growing province. For a desperate farmer, that bride price can be salvation-but at a cruel cost. Among the Pashtun, debt marriage puts a lasting stain on the honor of the bride and her family. It brings shame on the country, too. President Hamid Karzai recently told the nation:"I cal on the people [ not to] give their daughters for money; they shouldn't give them to old men, and they shouldn't give them in forced marriages."All the same, local farmers say a man can get killed for failing to repay a loan. No one knows how many debt weddings take place in Afghanistan, where 93 percent of the world's heroin and other opiates originate. But Afghans say the number of loan brides keeps rising as poppy-eradication efforts push more farmers into default."This will be our darkest year since 2000,"says Baz Mohammad,65,a white-bearded former opium farmer in Nangarhar."Even more daughters will be sold this year."The old man lives with the anguish of selling his own 13-year-old daughter in 2000, after Taliban leader Mullah Mohammed Omar banned poppy growing."Lenders never show any mercy,"the old man says. Local farmers say more than one debtor has been bound hand and foot, then locked into a small windowless room with a smoldering fire, slowly choking to death.Efforts to promote other crops have failed. Wheat or corn brings $250 an acre at best, while poppy growers can expect 10 times that much. Besides, poppies are more dependable: hardier than either wheat or corn and more tolerant of drought and extreme heat and cold. And in a country with practically no govermment-funded credit for small farmers, opium growers can easily get advances on their crops. The borrower merely agrees to repay the cash with so many kilos of opium, at a price stipulated by the lender-often 40 percent or more below market value. Islam forbids charging interest on a loan, but moneylenders in poppy country elude the ban by packaging the deal as a crop-futures transaction-and never mind that the rate
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下列哪位学者与研究遗传物质的结构和功能无关（）
A、沃森
B、艾弗里
C、沃森克里克
D、达尔文