向循环冷却水中加入缓蚀剂,可以减缓水对设备的腐蚀。

Windows 98提供了一些工具程序，帮助用户对注册表进行检查备份、恢复或修改等操作，但在默认情况下用户无法通过“开始”菜单启用这些工具。如需运行“注册表编辑程序”，可在“运行”对话框中执行命令______。

2011年5月24日，搭载一名意大利、一名俄罗斯和一名美国宇航员的“联盟”号载人飞船TMA-20从国际空间站返回地球。这三名宇航员的身体对于高速飞行中的载人飞船来说，其位置是保持不变的。这说明(    )

A．事物只有在一定条件下才能运动

B．在特殊情况下，静止不一定是有条件的

C．在一定条件下，事物有相对静止的一面

D．运动是需要条件的

王先生为某IT公司开发一套系统软件，一次性取得劳务报酬30000元，王先生就此项所得应纳个人所得税（）元。

A.4800

B.5200

C.5000

D.5600

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.

It can be inferred from the text that（）

A. company love affairs often lead to a much happier marriage

B. it is fairly popular for bosses to have affairs with employees

C.the future kings of England will not be involved in any affairs

D. Boeing has adjusted its strategy in terms of corporate affairs

根据《企业会计准则第7号——非货币性资产交换》的规定，下列项目中属于货币性资产的是( )。

A．对没有市价的股票进行的投资
B．对有市价的股票进行的投资
C．不准备持有至到期的债券投资
D．准备持有至到期的债券投资