简述斜拉桥和悬索桥的基本受力原理.

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问题:

简述斜拉桥和悬索桥的基本受力原理.

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下列关于热泵和制冷机的叙述不正确的是( )。

A.热泵是将环境作为低温热源,而制冷机是将环境作为高温热源
B.使用热泵目的是为了获得高温,而使用制冷机目的是为了获得低温
C.热泵就是以蒸发器或其他部件放出的热量来供热的制冷系统
D.热泵与制冷机在原理上是完全相同的

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甲向乙发出要约,乙于3月8日发出承诺信函,3月10日承诺信函寄至甲,但甲的法定代表人当日去赈灾,3月11日才知悉该函内容,遂于3月12日致函告知乙收到承诺,该承诺的生效时间是( )。

A.3月8日

B.3月10日

C.3月11日

D.3月12日

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Part 1


·Read the following passages, eight sentences have been removed from the article.
·Choose.from the sentences A-H the one which fits each gap.
·For each gap (1-8) mark one letter (A-H) on the Answer Sheet.
·Do not mark any letter twice.
Today’s career assumptions are you can get a lot of development, challenge and job satisfaction and not necessarily be in a management role.
A new malady is running rampantly in corporate America: management phobi
  • a. (1)
    " I hated all the meetings," says a 10-year award-winning manager, "and I found the more you did for people who worked for you, the more they expected." (2)
    With technology changing in a wink, you can never slack off these days if you’re on the technical side. (3)
    In addition, the Dilbert factor is at work. With Scott Adams’s popular cartoon character— as well as many television sitcoms — routinely portraying managers as morons or enemies, they just don’t get much respect anymore.
    Supervising others was always a tough task, but in the past that stress was offset by hopes for career mobility and financial rewards. (4)
    But in today’s global, more competitive arena, a manager sits on an insecure perch. (5) There are far fewer rungs on the corporate ladder for managers to clim
  • b. In addition, managerial jobs demand more hours and headaches than ever before but offer slim, if any, financial paybacks and perks.
    Furthermore, managers now must supervise many people who are spread over different locations, even over different continents. (6)
    In an age of entrepreneurship, when the most praised people in business are those launching something new, management seems like an invisible, thankless role. (7)
    Management layoffs have done much to erode interest in managerial jobs, of course. (8) A. Many people don’t want to be a manager — and many people who are managers are, frankly, itching to jump off the management track — or have already.B. It’s a rare person who can manage to keep up on the technical side and handle a management job, too.C. Restructuring have eliminated layer after layer of management as companies came to view their organizations as collections of competencies rather than hierarchies.D. They must manage across functions with, say, design, finance, marketing and technical people reporting to them.E. I was a counselor, motivator, financial adviser and psychologist.F. Employers are looking for people who can do things, not for people who make other people do things.G. American Management Association surveys say three middle managers are laid off for every one being hired.H. Along with a sizable pay raise, people chosen as managers would begin a nearly automatic climb up the career ladder to lucrative executive perks: stock options, company cars, club memberships, plus the key to the executive washroom.

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一新确诊的女性肺结核患者,表现为午后低热、乏力、食欲减退、消瘦、盗汗等;肺部病灶进展播散,干咳或带少量黏痰,月经失调。既往未经抗结核药治疗,可选用的初治短程方案是()

A.链霉素(S)、利福平(R)、异烟肼(H)、吡嗪酰胺(2)2个月十链霉素(S)、异烟肼(H)及吡嗪酰胺(2)6个月

B.链霉素(或乙胺丁醇)(S)、异烟肼(H)、利福平(R)及吡嗪酰胺(2)6个月

C.卡那毒素(K)、丙硫异烟胺(1321Th)、卷曲霉素(Cp)6个月

D.链霉素(S)、利福平(R)、异烟肼(H)、吡嗪酰胺(Z)2个月十乙胺丁醇E.、异烟肼(H)6个月

E.异烟肼(H)、利福平(R)及吡嗪酰胺(Z)组合为基础的6个月化疗方案

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我国要尽快采取积极措施完善针对()的服务机构,构建我国在全球的科技人才网络。

A.留学人员

B.海外华侨

C.海外华人

D.科研人员

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