According to the passage, 'sink or swim'(Sentence 2, Paragraph 2)is______.
A.absolutely wrong.
B.partly right.
C.a good ideA.
D.a proven methoD.

未分类题The word 'dragoon'(Sentence 2, Paragraph 3) probably means______.A.deceiveB.leadC.forceD.manage

单项选择题蛛网膜下腔出血最常见的病因是 A. 高血压 B. 动脉硬化 C. 感染 D. 栓子脱落 E. 脑内血管畸形

未分类题W.E.B.Du Bois was not only one of the founders of the National Association for the Advancement of Colored People(NAACP), but also organized First Pan African Congress in 1919.A.YB.NC.NG

单项选择题A、-1 B、1 C、0 D、2

未分类题听力原文： If you are like most people, your intelligence varies from season to season. You are probably a lot sharper in the spring than you are at any other time of year. A noted scientist, Ellsworth Huntington, concluded from other men's work and his own among people in different climates that climate and temperature have a definite effect on our mental abilities.He found that cool weather is much more favorable for creative thinking than is summer heat. This does not mean that all people are less intelligent in summer than they are during the rest of the year. It does mean, however, that the mental abilities of large numbers of people tend to be lowest in summer.Spring appears to be the best period of the year for thinking. One reason may be that in the spring man's mental abilities are affected by the same factors that bring about great changes in all naturE.Fall is the next-best season, then winter. As for summer, it seems to be a good time to take a long vacation from thinking,(30)A.Seasonal variations in naturE.B.How intelligence changes with the change of seasons.C.How we can improve our intelligencE.D.Why summer is the best season for vacation.

单项选择题企业按成本与可变现净值孰低法对存货进行计价的目的是( ) A. 保证存货账实相符 B. 防范可能出现的风险 C. 保证成本计算更加真实 D. 有利于提高存货的流动性

未分类题The phrase 'bread- and- butter business' most probably means ______.A.a business to sell bread and butterB.a business to produce bread and butterC.the business to make a livingD.a traveling agency

不定项选择高空急流是位于对流层上层或平流层中风速大于30m s的狭窄强风带，其形成与大气中有较大的垂直气温梯度有关

单项选择题对可调系统的特性要求包括 A、超调量 B、阻尼性能 C、过渡时间 D、以上都是

问答题Blending is a cognitive operation whereby elements of two or more _______ spaces re integrated via projection into a new, blended space which has its unique structure.