有关急性弥漫性腹膜炎的手术治疗错误的是（） A.腹腔内原发病严重，应及时行手术治疗

下图体现的是[ ]

A、恩格尔系数

B、物价消费指数

C、汇率和利率

D、价值规律的表现形式

假设某年国债发行额为3000亿元，当年国债还本付息额为2000亿元，财政收入额为36000亿元，财政支出额为39000亿元，则当年的财政偿债率为（）。

A．8.33%

B．7.69%

C．5.56%

D．5.13%

下列对房地产开发用地中“土地”的含义解释正确的是______

A．房地产开发用地即指取得开发用地的所有权
B．出让的土地使用权只是一种地上使用权，不包括地下资源和埋藏物
C．房地产开发用地，既指取得开发用地的使用权，又指取得开发用地的所有权
D．房地产开发用地，既包括城镇国有土地，又包括集体所有的土地

Compared with IBM, Microsoft is a mere young company. Founded in 1975, it rose swiftly to dominate the world of personal computing with its Windows operating system and Office suite of word-processing and other productivity tools. But the company is now showing some worrying signs of middle-age fatigue. In particular, it is struggling to find a growth strategy that will enthuse disappointed shareholders.

Complaint are understandable. Since Steve Ballmer took over from Bill Gates as chief executive in 2000, Microsoft’s share price has decreased and the company has lost its reputation as a tech trend-setter. It has been left behind in hot areas such as search and social networking by younger companies, some of which love to thumb their noses at their older rival. Eric Schmidt, the executive chairman of Google, recently proclaimed that leadership in the tech world had passed from Microsoft and others to a "Gang of Four" fast-growing, consumer-oriented businesses: Google, Apple, Amazon and Facebook.

Few would object to that. The question is: what，if anything, can Microsoft do to change it In at least some respects, the company appears to be suffering from similar ailments to those that laid IBM low before Lou Gerstner was hired in 1993 to get it back on its feet. These include arrogance bred of dominance of a particular area-mainframe computers at IBM, personal computers at Microsoft—and internal fiefs that hamper swift change.

As IBM’s experience shows, recovery in the tech world is possible. And some observers see encouraging signs of progress at Microsoft. Sarah Rotman Epps of Forrester, a research firm, reckons that Windows 8, a forthcoming version of Microsoft’s operating system, could be a serious competitor to Google’s Android on tablet computers if the company can get it to market next year．Microsoft is also in far better shape financially than IBM was at its lowest point, so it can afford to splash out on acquisitions such as its recent $8.5 billion purchase of Skype, an internet-phone and video-calling service.

That bet and an alliance with Nokia in mobile phones show that Microsoft is trying to bulk up in promising areas. Yet sceptics worry that such initiatives are not the product of an comprehensive strategic vision, but are instead temporary moves designed to calm critics who fear Microsoft is drifting downwards. David Einhorn, a prominent hedge-fund manager whose fund holds shares in Microsoft, has publicly called for a change at the top of the firm, arguing that Mr Ballmer is "stuck in the past". So far, the company’s board, chaired by Mr Gates, has backed its chief executive. But if IBM’s history is a guide, Microsoft may yet end up jettisoning its leader.

Some people are optimistic about Microsoft’s future probably in that（）

A. they have faith in its innovation ability

B. its financial situation is better than IBM’s

C. they have noticed the efforts it is making

D. Windows 8 and Skype are bound to be popular

下列有关S-Video信号的说法中正确的是 。

A．S-Video信号是R，G和B三基色相分离的视频信号
B．s-Video信号是亮度与色差相分离的视频信号
C．S-Video信号电缆中传输了三路独立的视频信号
D．S-Video信号也称为全电视信号