急性肾小管坏死是外科常见的急性肾功能衰竭的主要形式，其主要病变由于（）和（），约（）

新《安全生产法》建立了严重违法行为公示和通报制度，以下表述正确的是（）

A、要求负有安全生产监督管理部门建立安全生产违法行为信息库，如实记录生产经营单位的安全生产违法行为信息

B、对违法行为情节严重的生产经营单位，应当向社会公告

C、生产经营单位负责人必须在主流媒体公开作出检查

D、通报行业主管部门、投资主管部门、国土资源主管部门、证券监督管理部门和有关金融机构

下列过程主要发生物理变化的是（　　）

A．干冰升华

B．氢气燃烧

C．酸碱中和

D．钢铁生锈

提高脑电图的痫性放电的检出率需要下列哪项方法？（）

A.反复检查或延长脑电图检查的时间、过度换气方法、闪光刺激、剥夺睡眠等

B.检查前让患者饱食

C.检查前运动

D.检查前充足的睡眠

E.检查前禁食

下列各项，不属于现金支出总额的—部分的是( )。

A．直接材料采购支出
B．支付借款利息
C．预交所得税
D．销售及管理费用支出

Weak dollar or no, $ 46,000-the price for a single year of undergraduate instruction amid the red brick of Harvard Yard-is (1) But nowadays cost is (2) barrier to entry at many of America’s best universities. Formidable financial-assistance policies have (3) fees or slashed them deeply for needy students. And last month Harvard announced a new plan designed to (4) the sticker-shock for undergraduates from middle and even upper-income families too.

Since then, other rich American universities have unveiled (5) initiatives. Yale, Harvard’s bitterest (6) , revealed its plans on January 14th. Students whose families make (7) than $60,000 a year will pay nothing at all. Families earning up to $ 200,000 a year will have to pay an average of 10% of their incomes. The university will (8) its financial- assistance budget by 43%, to over $ 80m.

Harvard will have a similar arrangement for families making up to $180,000. That makes the price of going to Harvard or Yale (9) to attending a state-run university for middle-and upper-income students. The universities will also not require any student to take out (10) to pay for their (11) , a policy introduced by Princeton in 2001 and by the University of Pennsylvania just after Harvard’s (12) . No applicant who gains admission, officials say, should feel (13) to go elsewhere because he or she can’t afford the fees.

None of that is quite as altruistic as it sounds. Harvard and Yale are, after all, now likely to lure more students away from previously (14) options, particularly state-run universities, (15) their already impressive admissions figures and reputations.

The schemes also provide a (16) for structuring university fees in which high prices for rich students help offset modest prices for poorer ones and families are less (17) on federal grants and government-backed loans.

Less wealthy private colleges whose fees are high will not be able to (18) Harvard or Yale easily. But America’s state-run universities, which have traditionally kept their fees low and stable, might well try a differentiated (19) scheme as they raise cash to compete academically with their private (20) . Indeed, the University of California system has already started to implement a sliding-fee scale.

6（）

A.counterpart

B.coordinator

C.rival

D.cooperator