患者，女，25岁，未婚。初潮晚，月经后期，量少、色淡，渐至闭经，头晕耳鸣，腰酸腿软，

关于集合资产管理业务，下列说法正确的有( )。

A．证券公司应对集合资产管理业务实行集中统一管理，严禁分支机构对外独立开展集合资产管理业务

B．证券公司应当指定专门人员具体负责每一个集合资产管理计划的投资管理事宜，负责客户资产管理业务和负责自营业务的高级管理人员不得由同一人兼任

C．集合资产管理计划存续期间，该集合资产管理计划的投资主办人员不得管理其他集合资产管理计划

D．集合资产管理计划的资产必须进行第三方托管，证券公司可选择任一商业银行作为集合资产管理计划的资产的托管机构

科学事业费占财政科技拨款总额的比重为（）

A．28%

B．35%

C．33%

D．31%

设二元函数f(x，y)在点(x₀，y₀)处的两个偏导数f’_x(x₀，y₀)与f’_y(x₀，y₀)都存在，则
(A) 极限

与极限

都存在．
(B) 极限

存在，但函数f(x，y)在点(x₀，y₀)处不一定连续．
(C) 函数f(x，y)在点(x₀，y₀)处连续．
(D) 函数f(x，y)在点(x₀，y₀)处可微，且全微分df|_(x0,y0) =f’_x(x₀，y₀)dx+f’_y(x₀，y₀)dy．

It may be just as well for Oxford University’s reputation that this week’s meeting of Congregation, its 3,552-p governing body, was held in secret, for the air of civilized rationality that is generally supposed to pervade donnish conversation has lately turned fractious. That’s because the vice-chancellor, the nearest thing the place has to a chief executive, has proposed the most fundamental reforms to the university since the establishment of the college system in 1249; and a lot of the dons and colleges don’t like it.

The trouble with Oxford is that it is unmanageable. Its problems-the difficulty of recruiting good dons and of getting rid of bad ones, concerns about academic standards, severe money worries at some colleges-all spring from that. John Hood, who was recruited as vice-chancellor from the University of Auckland and is now probably the most-hated antipodean in British academic life, reckons he knows how to solve this, and has proposed to reduce the power of dons and colleges and increase that of university administrators.

Mr. Hood is right that the university’s management structure needs an overhaul. But radical though his proposals seem to those involved in the current row, they do not go far enough. The difficulty of managing Oxford stems only partly from the nuttiness of its system of governance; the more fundamental problem lies in its relationship with the government. That’s why Mr. Hood should adopt an idea that was once regarded as teetering on the lunatic fringe of radicalism, but these days is discussed even in polite circles. The idea is independence.

Oxford gets around ￡5,000 ($9,500) per undergraduate per year from the government. In return, it accepts that it can charge students only ￡1,150 (rising to￡3,000 next year) on top of that. Since it probably costs at least ￡10,000 a year to teach an undergraduate, that leaves Oxford with a deficit of ￡4,000 or so per student to cover from its own funds.

If Oxford declared independence, it would lose the ￡52m undergraduate subsidy at least. Could it fill the hole Certainly. America’s top universities charge around ￡20,000 per student per year. The difficult issue would not be money alone, it would be balancing numbers of not-so-brilliant rich people paying top whack with the cleverer poorer ones they were cross-subsidising. America’s top universities manage it: high fees mean better teaching, which keeps competition hot and academic standards high, while luring enough donations to provide bursaries for the poor. It should be easier to extract money from alumni if Oxford were no longer state-funded.

To which of the following statements would the author most probably agree（）

A. The contribution from alumni won’t lure ample donation by the wealthy

B. The civilized rationality is gradually spoiled by fractious nature

C. The row going on in Oxford is passionate but beside the point

D. American’s top universities are somewhat apprehensive of their current status but over-confident of their prospect

有一奶牛场的奶牛在某年冬季陆续发病，体温升高达41℃以上，精神极度沉郁、拒食、流泪、咳嗽，流鼻液，呈黏稠脓性，鼻黏膜高度充血，有浅溃疡，鼻翼及鼻镜高度炎性充血、潮红，呈红色。炎性渗出物阻塞鼻腔而呼吸困难。病牛常张口呼吸，呼气中常有臭味。有的病牛出现带血的下痢。有的病牛眼睑肿胀，结膜充血。产奶乳牛产乳量大减或完全停止。

要进一步确诊，应

A．采集病料做病毒分离鉴定 B．采取血液做生化试验
C．采取血液做细菌培养
D．采取血液做血常规检查
E．X线检查