题目

中学化学中下列各物质间不能实现(“→”表示一步完成)转化的是( ) 选项ABCD aCH3CH2OHCH2CH2Cl2C bCH3CHOCH3CH2BrHClOCO cCH3COOHCH3CH2OHHClCO2 答案：解析:CH3COOH不能一步转化为CH3CH2OH,A项错误。 答案:AHARVARD UNIVERSITY                                 Office of AdmissionsFinancial AidOur goal in admissions and financial aid is clear: We want to bring the best people to Harvard, regardless of their ability to pay — and we do. About 70 percent of our students receive some form of aid, with over 60 percent receiving need–based scholarships.Two principles guide us:· Admission to Harvard is need-blind, by which we mean that financial need is not a barrier to admission. International students have the same access to financial aid as United States citizens.· Financial aid at Harvard is entirely need–based and we are committed to meeting the demonstrated need of all students. Students apply for aid annually and every year we review our financial aid program, considering such things as any changed student or family circumstances, university resources, and demand.Removing Economic BarriersIn the past decade we have increased financial aid for low and middle income families by over 180%. No contribution is expected from parents with incomes under $65,000. Beginning with the class of 2016, those parents with annual incomes between $65,000 and $150,000 are asked to contribute from zero to ten percent of their income. Some families with incomes above $150,000 still qualify for aid. Families at all incomes who have significant assets（资产）will continue to pay more than those in less fortunate circumstances. Students are also asked to contribute to the cost of their education through term-time and summer work.Families with higher incomes facing unusual financial challenges may also qualify for need–based scholarship assistance, yet those with significant assets at all income levels are asked to contribute proportionately（成比例的）more.Our financial aid program includes an array of financing options beyond our need–based scholarship program, such as a parent monthly payment plan, various loan programs and the opportunity to pre–pay tuition for four years at a student’s freshman year rate.There are also other forms of financial assistance such as the Faculty Aide Program, the Harvard College Research Program and the Dean’s Summer Research Program that enable students to create paid partnerships with teachers on academic projects of mutual interest. Over two-thirds of Harvard students choose to work during their time in Cambridge and gain valuable job experience working in a wide array of University settings, including our libraries, dining halls, museums and academic departments.We hope you will visit our websites for a fuller description of our comprehensive program of financial assistance.小题1:Admission to Harvard is need-blind in that _______.A．Harvard does take into account students’ economic situationsB．Students’ ability to pay does not affect their admissions to HarvardC．Students need to pay big money to Harvard after they are admittedD．The majority of students in Harvard do not need financial aids小题2:Based on the requirements above, we can learn that _______.A．parents with annual incomes of over $ 150,000 needn’t contributeB．financial aids are not intended for families with higher incomesC．wealthier families are expected to contribute more to HarvardD．students are not encouraged to pay the cost of their education小题3:In what way can students get financial assistance from Harvard?A．Students can be offered paid-work opportunities outside Harvard.B．Students can have opportunities to get loans for their education.C．Students can pay for their education in Harvard within one month.D．Students earn money by assisting teachers in Cambridge University.