男，58岁，3年来胸骨后烧灼感，反酸、烧心，近来症状加重，并排黑便3次。既往患食管裂

无线网络预防性例行维护有（）和（）两种工作方式。

(B)

An increase in students applying to study economics at university is being attributed to (归因于) the global economic crisis awakening a public thirst for knowledge about how the financial system works.

Applications for degree courses beginning this autumn were up by 15% this January, according to UCAS, the Universities and Colleges Admissions Service. A spokesman for the Royal Economic Society said applications to do economics at A-level were also up.

Professor John Beath, the president of the society and a leading lecturer at St Andrews University, said his first –year lectures—which are open to students from all departments—were drawing crowds of 400, rather than the usual 250.

“There are a large number of students who are not economics majors, who would like to learn something about it. One of the things I have done this year is to relate my teaching to contemporary events in a way that one hasn’t traditionally done,” he added.

University applications rose 7% last year. But there were rises above average in several subjects. Nursing saw a 15% jump, with people’s renewed interest in careers in the public sector(部门)，which are seen as more secure in economic crisis.

A recent study showed almost two thirds of parents believed schools should do more to teach pupils about financial matters, and almost half said their children had asked them what was going on, although a minority of parents felt they did not understand it themselves well enough to explain.

Zack Hocking, the head of Child Trust Funds, said: “It’s possible that one good thing to arise from the downturn will be a generation that’s financially wiser and better equipped to manage their money through times of economic uncertainty.”

50.Professor John Beath’s lectures are_____.

A.given in a traditional way    B. connected with the present situation

C.open to both students and their parents D.warmly received by economists

51.Careers in the public sector are more attractive because of their_____.

A. greater stability B.higher pay C.fewer applications D.better reputation

52.According to Hocking, the global economic crisis might make the youngsters_____

A. wiser in money management   B.have access to better equipment

C.confident about their future careers   D.get jobs in Child Trust Funds

53.What’s the main idea of the text?

A.Universities have received more applications.

B. Economics is attracting an increasing number of students.

College students benefit a lot from economic uncertainty.

Parents are concerned with children’s subject selection.

女性，25岁，因发热服用解热镇痛药后出现关节痛、皮疹，尿常规示：蛋白（++），白细胞3～6／HP，红细胞5～8／HP，血常规：血红蛋白108g／L，白细胞4．7×10⁹／L，分类：中性粒细胞0．62，淋巴细胞0．28，嗜酸性粒细胞0．10，血小板120×10⁹／L，临床诊断首先考虑（）.

A.狼疮性肾炎

B.急性肾小球肾炎

C.慢性肾小球。肾炎

D.急性间质性肾炎

E.急性肾盂肾炎

行为学家班杜拉认为，通过观察别人而非亲身经历的强化称（）

A.正强化

B.负强化

C.替代性强化

D.区分强化

E.自我强化

为了保护计量仪表，应把管汇中的气体由（）的排放阀排出。