对代理商依赖性低

某公司拟进行股票投资，计划购买ABC三种股票，并设计了甲乙两种投资组合，ABC三种股票的β系数分别为1.5、1.0和0.5。甲种投资组合中，ABC三种股票的投资比重分别为20%、30%和50%。乙种投资组合中，ABC三种股票的投资比重分别为50%、30%和20%。同期市场上所有股票的平均收益率为8%，无风险收益率为4%。

B股票的预期收益率是（）。

A.4.6% 

B.8.0% 

C.8.6% 

D.12.0%

关于输精管结扎术的并发症，叙述正确的是

A．阴囊血肿最常见的原因是阴囊动脉断裂

B．对出血已经停止的较大血肿，原则上仍应手术清除瘀血

C．感染常发生于术后7～10天

D．附睾淤积症多由细菌感染引起

E．痛性结节多发生于术后1个月

     阅读下面三幅漫画，回答问题：

   （1）你认为他们应该选择哪种方式来行使建议权？除此之外，还可以采取哪些方式？（至少写两条）   

   （2）上图做法中哪些是不正确的？为什么？

LAST month, America’s National Law Journal told its readers that " employment lawyers are warning lovestruck co-workers to take precautions in the office before locking lips outside". The advice came too late for Harry Stonecipher. The boss of Boeing was forced to resign last weekend--for reasons that will strike many outsiders as absurd--after his board were told of an affair that the 68-year-old married man had been conducting with a female employee "who did not report directly to him".

Inevitably, as the week rolled on, details of the affair rolled out. The other party was reported to be Debra Peabody, who is unmarried and has worked for Boeing for 25 years. The couple were said to have first got together at Boeing’s annual retreat at Palm Desert, California in January. After that much of the affair must have been conducted from a distance: Mr. Stonecipher’s office is at Boeing’s headquarters in Chicago; Ms Peabody runs the firm’s government-relations office in Washington, DC. They exchanged e-mails, it seems, as office lovers tend to do these days, and therein probably lay Mr Stonecipher’s downfall.

Lewis Platt, Boeing’s chairman, said that Mr Stonecipher broke a company rule that says: "Employees will not engage in conduct or activity that may raise questions as to the company’s honesty, impartiality, reputation or otherwise cause embarrassment to the company. " Having an affair with a fellow employee is not, of itself, against company rules; causing embarrassment to Boeing is. It seems that the board judged that the contents of the lovers’ e-mails would have been bad for Boeing had they been made public. Gone are the days when a board considered such matters none of its business, as Citibank’s did in 1991 when its boss, John Reed, became the talk of Wall Street for having an affair with a stewardess on Citi’s corporate jet.

At Boeing, a whistleblower is said to have forwarded the messages to Mr Platt. In general, e-mails are encrypted and not accessible to anyone who does not know the sender’s password. But many firms install software designed to search electronic communications for key words such as, " sex" and " CEO". A study last year of 840 American firms by the American Management Association found that 60% of them check external e-mails ( incoming and outgoing), while 27% scrutinize internal messages between employees. Sweet nothings whispered by the water cooler may travel less far these days than electronic billets doux.

Boeing is particularly sensitive to embarrassment at the moment. Mr. Stonecipher was recalled from retirement only 15 months ago, after the company’s previous boss, Phil Condit, and its chief financial officer, Michael Sears, had left in the wake of a scandal involving an illegal job offer to a Pentagon official.

Mr Stonecipher, a crusty former number two at Boeing, was brought back specifically to raise the company’s ethical standards and to help it be seen in its main (and affectedly puritanical) market, in Washington, DC, as squeaky clean. Verbally explicit extra-marital affairs are inconsistent with such a strategy, it seems, though they are not yet enough to bring down future kings of England.

In corporate life, such affairs are hardly unusual. One survey found that one-quarter of all long-term relationships start at work; another found that over 40% of executives say they have been involved in an affair with a colleague, and that in half of these cases one or other party was married at the time. Many a boss has married his assistant and lived happily ever after. Boeing apparently used to accept this: Mr. Condit’s fourth wife was a colleague before they married.

The word "whistleblower" (paragraph 4) most probably refers to a person who（）

A. likes finding secret affairs

B. discloses secrets to others

C. blows the whistle as a job

D.forward messages for people

下列关于会计分录的说法，正确的是( )。

A．会计分录必须一借一贷，不允许一借多贷或多借一贷，更不允许多借多贷
B．会计分录必须既有借方又有贷方，且借方金额合计应等于贷方金额合计
C．会计分录允许只借不贷，也可以只贷不借
D．会计分录必须既有借方又有贷方，但借方金额合计不一定等于贷方金额合计