三角形的两边分别为2和6，第三边是方程x2-10x+21=0的解，则三角形的周长

Prince Klemens Von Metternich, foreign minister of the Austrian Empire during the Napoleonic era and its aftermath, would have no trouble recognizing Google. To him, the world’s most popular web-search engine would closely resemble the Napoleonic France that in his youth humiliated Austria and Europe’s other powers. Its rivals--Yahoo !, the largest of the traditional web gateways, eBay, the biggest online auction and trading site, and Microsoft, a software empire that owns MSN, a struggling web portal--would look a lot like Russia, Prussia, and Austria. Metternich responded by forging an alliance among those three monarchies to create a "balance of power" against France. Google’s enemies, he might say, ought now to do the same thing.

Google announced two new conquests on August 7th. It struck a deal with Viacom, an "old" media firm, under which it will syndicate video clips from Viacom brands such as MTV and Nickelodeon to other websites, and integrate advertisements into them. This makes Google the clear leader in the fledgling but promising market for web-video advertising. It also announced a deal with News Corporation, another media giant, under which it will provide all the search and text-advertising technology on News Corporation’s websites, including MySpace, an enormously popular social-networking site.

These are hard blows for Yahoo! and MSN, which had also been negotiating with News Corporation. Both firms have been losing market share in web search to Google over the past year--Google now has half the market. They have also fallen further behind in their advertising technologies and networks, so that both make less money than Google does from the same number of searches. Sara Rashtchy, an analyst at Piper Jaffray, a securities firm, estimates that for every advertising dollar that Google makes on a search query, Yahoo! makes only 60-70 cents. Last month Yahoo! said that a new advertising algorithm that it had designed to close the gap in profitability will be delayed, and its share price fell by 22% , its biggest-ever one-day drop.

MSN is further behind Google than Yahoo! in search, and its parent, Microsoft, faces an even more fundamental threat from the expansionist new power. Many of Google’s new ventures beyond web search enable users to do things free of charge through their web browsers that they now do using Microsoft software on their personal computers. Google offers a rudimentary but free online word processor and spreadsheet, for instance.

The smaller eBay, on the other hand, might in one sense claim Google as an ally. Google’s search results send a lot of traffic to eBay’s auction site, and eBay is one of the biggest advertisers on Google’s network. But the relationship is imbalanced. An influential recent study from Berkeley’s Haas School of Business estimated that about 12% of eBay’s revenues come indirectly from Google, whereas Google gets only 3% of its revenues from eBay. Worst of all for eBay, Google is starting to undercut its core business. Sellers are setting up their own websites and buying text advertisements from Google, and buyers are using its search rather than eBay to connect with sellers directly. As a result, "eBay would be wise to strike a deep partnership with Yahoo ! or Microsoft in order to regain a balance of power in the industry," said the study’s authors, Julien Decor and Steve Lee, sounding like diplomats at the Congress of Vienna in 1814.

Yahoo ! and MSN are making less money for the same number of searches chiefly because（）

A. they are not good at negotiating with News Corporation

B. they are losing market share very quickly

C. they lack advanced advertising technology and networks

D. they have failed in designing their new advertising algorithm

认真读，选择正确的译文。

1. 你叫什么名字？[ ]

A. What's your name?

B. Who are you?

2. 我有一把尺子。[ ]

A. I have a pen.

B. I have a ruler.

3. 你几岁了？[ ]

A. How old are you?

B. How are you?

4. 触摸你的鼻子。[ ]

A. Touch your nose.

B. Touch your mouth.

5. 这是我的朋友。[ ]

A. My name is John.

B. This is my friend.

建立规划的评估调整机制，包括实行规划评估制度和( )。

A．适时对规划进行调整和修订
B．定期对规划进行修改
C．定期对规划进行调整和修订
D．适时对规划进行评估

甲向乙银行借款20万元，乙银行要求甲提供担保，甲遂请丙以其所有的一个房产为其债务提供了抵押，并依法办理了登记。约定债务履行期间为2001年5月1日之前还款，担保期间为6个月，并在登记部门登记了该保证期间；后来甲不能清偿到期债权，但乙银行也没有要求甲还款，也不行使担保物权，到了2004年8月，乙银行要求实现担保物权。

A．该担保期间具有法律效力，当事人应当遵守，乙银行未能在6个月期间内行使担保物权，现在不能行使

B．该债权已经经过诉讼时效，乙银行不能行使担保物权

C．担保物权是没有期限限制的，因此乙银行的担保物权并没有消灭，一直可以行使

D．乙银行在主债权的诉讼时效结束后的二年内行使担保物权，应当予以支持

委托农行以外的第三方识别客户身份的应符合下列要求（）。

A.能够证明第三方按有关法律，法规，规程的要求，采取了客户身份识别和身份资料保存的必要措施。

B.第三方为本行提供客户信息，不存在法律制度，技术等方面障碍。

C.本行在办理业务时，能及时获得第三方提供客户信息。

D.委托第三方代为履行识别客户身份的，委托机构应当承担未履行客户身份识别的责任。

E.获得第三方提供客户信息后就没必要再验证客户的有效身份证件，身份证明文件等。