某机构打算用3个月后到期的1 000万资金购买等金额的A、B、C三种股票，现在这三种股票的价格分别为20元、25元和60元，由于担心股价上涨，则该机构采取买进股指期货合约的方式锁定成本。假定相应的期指为2 500点，每点乘数为100元，A\B、C三种股票的β系数分别为0.9、1.1和1.3。则该机构需要关进期指合约(    )张。

（三）患者，女，27岁，孕8周，身高168cm，体重58kg，因体检尿常规结果异常就诊，白细胞300/μl。今日尿培养回报：尿细菌计数2.13×10⁵ cfu/ml，患者自述无尿频、尿急、尿痛，无肉眼可见血尿，无腰痛、寒战或发热。
关于该患者治疗方案的说法，正确的是（ ）。

山药经炮制后以补脾止泻为主，常选用（  ）

出现心衰细胞的是

在新课程改革中，教师的教学行为发生变化，下列选项中正确的是（  ）。

关于开放式基金份额的转换，下列说法错误的是（     ）。

患者，男，27岁。右上后牙龈下刮治后仍有肿胀。检查：7冠远中边缘与龈缘平齐，探诊深度8mm。X线片：7远中未见埋伏牙，牙槽骨水平吸收达根长2/3。如果拟行翻瓣手术，7远中处应采取的切口为（   ）

清晨起床或夜间卧下时咳嗽加剧的是

Passage2

Itused to be that people were proud to work for the same company for the whole oftheir working lives. They’d get a gold watch at the end of their productiveyears and a dinner featuring speeches by their bosses praising their loyalty.But today’s rich capitalists have regressed to the “survival of the fittest”ideas and their loyalty extends not to their workers or even to theirstockholders but only to themselves. Instead of giving out gold watches worth ahundred or so dollars for forty or so years of work, they grab tens and evenhundreds of millions of dollars as they sell for their own profit the companythey may have been with for only a few years.

Thenew rich selfishly act on their own to unfairly grab the wealth that thecountry as a whole has produce

Thetop 1 percent of the population now has wealth equal to the whole bottom 95percent and they want more. Their selfishness is most shamelessly expressed indownsizing and outsourcing because these business maneuvers don’t act to createnew jobs as the founder of new industries used to do, but only out jobs whilekeeping the money value of what those jobs produced for themselves.

Tokeep the money machine working smoothly the rich have bought all thepoliticians from the top down. The president himself is constantly leavingWashington and the business at the nation because he is summoned to “fundraisingdinners” where fat cats pay a thousand or so dollars a plate to warm their wayinto government not through service but through donations of vast amounts ofmoney. Once on the inside they have both political parties busily tearing upall the regulations that protect the rest of us from the greed of the rich.

Themiddle class used to be loyal to the free enterprise system. In the past, thepeople of the middle class mostly thought they’d be rich themselves someday orhave a good shot at becoming rich. But nowadays income is being distributedmore and more unevenly and corporate loyalty is a thing of the past. The middleclass may also wake up to forget its loyalty to the so-called free enterprisesystem altogether and the government which governs only the rest of us whileletting the corporations do what they please with our jobs. As things stand, ifsomebody doesn’t wake up, the middle class is on a path to being downsized allthe way to the bottom of society.

What is the author’s purpose in writing this passage?

选择上颌无牙颌托盘时，其后缘长度应（  ）

患者，女，29岁。外感后，突发呕吐，恶寒头痛，胸脘满闷，舌苔白腻，脉濡缓。治疗应首选