下列关于建设项目财务评价肘,反映企业偿还短期债务能力指标与比率的说法,正确的是(

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问题:

下列关于建设项目财务评价肘,反映企业偿还短期债务能力指标与比率的说法,正确的是( )。

A.流动比率,一般为2:1较好
B.流动比率,一般为1:2较好
C.速动比率,一般为2:1较好
D.速动比率,一般为1:2较好

考点:造价工程师工程造价计价与控制工程造价计价与控制
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CD-DA在多媒体的发展史上立下了不朽的功勋,20世纪80年代初就确定了声音采样频率为44.1kHz,并且成为标准。问录制74分钟的CD-DA声音需要多少MB的存储空间(按1MB=1024×1024字节计算,不计文件格式本身所占用的空间。四舍五入取整数),所需存储容量为()。

A.747MB

B.374MB

C.783MB

D.其他数值

题型:单项选择题

维生素C又名抗坏血酸,易溶于水,易被氧化,遇热易被破坏,人体缺乏维生素C可能引发多种疾病,它的化学式是C6H8O6。计算:

(1)维生素C的相对分子质量为                    

(2)维生素C中各元素的质量比______________________

(3)维生素C中氢元素的质量分数是多少(结果保留一位小数,有计算过程)。

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People are being lured (引诱)onto Facebook with the promise of a fun, free service without realizing they're paying for it by giving up their personal information. Facebook then attempts to make money by selling their data to advertisers that want to send targeted messages.

Most Facebook users don't realize this is happening. Even if they know what the company is up to, they still have no idea what they're paying for Face book because people don't reallyknow what their personal data is worth.

The biggest problem, however, is that the company keeps changing the rules. Early on, you keep everything private. That was the great thing about facebook-you could create your own little private network. Last year, the company changed its privacy rules so that many things— your city, your photo, your friends' names—were set, by default(默认)to be shared with every one on the Internet.

According to Facebook's vice-president Elliot Schrage, the company is simply making changes to improve its service, and if people don't share information, they have a "less satisfying experience".

Some critics think this is more about Facebook looking to make more money. In original business model, which involved selling ads and putting them at the side of the pages totally. Who wants to look at ads when they're online connecting with their friends?

The privacy issue has already landed Facebook in hot water in Washington. In April. Senator Charles Schumer called on Facebook to change its privacy policy. He also urged the Federal Trade Commission to set guidelines for social-networking sites. "I think the senator rightly communicated that we had not been clear about what the new products were and how people could choose to use them or not to use them," Schrage admits.

I think that whatever Facebook has done so far to invade our privacy, it's only the beginning. That is why I'm considering deactivating(撤销)my account. Facebook is a handy site, but I'm upset by the idea that my information is in the hands of people I don't trust. That's too high a price to pay.

小题1:Why do people give their personal information to Facebook according to Paragraph 1?

A.Because they can get some money from Facebook.

B.Because their information is not important.

C.Because they are promised to have a fun and free service.

D.Because they can also get other people's information.小题2:What does the author say about most Facebook users?

A.They are unwilling to give up their personal information.

B.They don't know their personal data enriches Facebook.

C.They don't identify themselves when using the website.

D.They care very much about their personal information.小题3:Why does Facebook make changes to its rules according to Elliot Schrage?

A.To give better service to its users.

B.To obey to the Federal guidelines.

C.To improve its users' connection.

D.To expand its business.小题4:Why does Senator Charles Schumer support publicly?

A.Setting guidelines for advertising on websites.

B.Banning the sharing of users' personal information.

C.Making regulations for social-networking sites.

D.Removing ads from all social-networking sites.

题型:单项选择题

下列哪一种局麻药的一次限量是正确的()

A.普鲁卡因1000mg

B.丁卡因60mg

C.布比卡因150mg

D.利多卡因400mg

E.邦妥卡因150mg

题型:单项选择题

中国人民解放军政治工作必须坚持(),探索和把握新形势下政治工作的特点规律,改进和创新政治工作。

A.紧贴时代发展

B.紧贴使命任务

C.紧贴官兵实际

D.紧贴形势任务

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