问题 单项选择题 B型题

急性呼吸窘迫综合征时的过度通气可致()

A.阻塞性通气不足

B.限制性通气不足

C.弥散障碍

D.通气血流比例失调

E.肺泡表面活性物质破坏

答案

参考答案:E

阅读理解

James Stallman Rockefeller, the oldest-known U.S. Olympic medal winner and the former head of the bank that became Citigroup, died Tuesday. He was 102. Records of the U.S. Olympic Committee show that Rockefeller was the oldest American medal winner. He was the captain of Yale University's eight-man rowing team with coxswain that won gold at the 1924 Paris Olympics - beating the Canadian team by less than 16 seconds. The oars from the winning race and the gold medal were prominently displayed in Rockefeller's house. "I think he was really proud of that - probably more than the bank career," said his grandson。

Rockefeller suffered a stroke on Thursday, said his grandson, who lived with him at his Greenwich home for two years, attributed his long life to a regimented(严密组织的) lifestyle: breakfast at eight a.m., lunch at 1 p.m., cocktails at 6 p.m. and dinner promptly at 7 p.m.. He liked plain food, without sauces or cheese, and plenty of fresh vegetables, including those grown in the garden of his estate. Rockefeller was in good health until shortly before he died. He drove his car up until last year and would review documents from the various charities and businesses he helped lead.

Rockefeller, born June 8, 1902, was a grandson of William Rockefeller, who founded Standard Oil with his brother, John D. Rockefeller. He graduated from Yale in 1924 and served in the Airborne Command during World War II. He started at the bank, and then called the National City Bank, in 1930, following his uncle and grandfather, who were leaders of the bank. He was became president in 1952, chairman in 1959 and retired in 1967. In 1955, under Rockefeller's leadership, the bank merged with the First National Bank of New York to form Citigroup. Rockefeller also was a director of numerous companies, including Pan American Airways, Northern Pacific Railroad, NCR and Monsanto, and served on the boards of the Memorial Sloan-Kettering Cancer Center and the American Museum of Natural History.

Rockefeller and his wife, Nancy Carnegie Rockefeller, had four children. His wife died in 1994.

16. Rockefeller lost his wife when he was ___________.

A. at the age of 91    B. in his eighties   C. in his nineties       D. in his 1994

17. We can learn from the passage that ____________.

A. the American rowing team beat the Canadian team in less than 16 seconds in 1924.

B. Rockefeller was the first American medal winner.

C. James Stallman Rockefeller founded the National City Bank and became president.

D. His grandson thought Rockefeller had long life because of a regimented lifestyle.

18. What does the underlined word in the last paragraph but one mean?

A. combined     B. joined     C. took on     D. together with

19. What we can infer from the passage is that __________.

A. James Stallman Rockefeller is a great Olympic medal winner.

B. James Stallman Rockefeller was in good health until he died.

C. James Stallman Rockefeller was very active in American society.

D. James Stallman Rockefeller was the only grandson of William Rockefeller.

问答题 案例分析题

某机电安装工程公司承接某汽车厂重型压力机车间机电设备安装工程,工程内容包括:设备监造,压机的就位安装、压力管道安装、电气工程、自动控制工程和单机试运行等。其中压机最高22.5m,单件最重为105吨。合同工期为4个月。合同约定,工期每推迟一天罚10000元,提前一天奖励5000元。

对压力管道的安装,机电安装工程公司项目部在安装前按规定履行了书面告知手续。

该公司项目部对承接工程进行分析,工程重点是压机吊装就位,为此,制定了两套吊装方案:

第一套方案:采用桅杆式起重机吊装。经测算施工时间需要50天,劳动力安排日平均为30人,参照相关规定计算人工日平均工资50元,机械台班费及新购置钢丝绳和索具费用共20万元,其他费用2.5万元。

第二套方案:采用两台1OO吨履带式起重机抬吊。吊车需要租赁,租赁费用1万元/台班,但不发生购置钢丝绳和索具费和其他机械台班费。经测算,现场共需14天,与第一套方案相比人工费可降低70%,其他费用可降低30%。该项目部合理选择了吊装方案,注重安全管理,合理调度,加强了施工阶段的成本控制,尤其对压机吊装成本费用的控制。吊装部队发挥了积极性,如期完成任务,为后面工序创造了良好条件,使该工程项目提前8天完成了施工任务。

施工阶段项目成本的控制要点有哪些?