what are we told about the current impact of the internet in the second paragraph?（　　）。

A．publishers benefit from their exploitation of the interne

B．the internet has made it easier to analyse business trend

C．It is difficult to calculate the true economic value of the interne

D．the internet facilitates the development of the knowledge econom

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1 In the third paragraph, what does the writer say about knowledge?（　　）

A．Acquiring knowledge can be expensive

B．The most valuable knowledge concerns IT

C．Trading knowledge raises issues of securit

D．New businesses find it hard to trade in knowledg

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2 What point is made about knowledge in the fourth paragraph?（　　）

A．It provides specialist information

B．Its appeal lies in its exclusivity

C．it can generate new ideas

D．Its value accumulates

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3 which application of knowledge does the writer regard as particularly useful?（　　）

A．analyzing manufacturing trends

B．introducing compatible parties

C．interpreting time constraints

D．advising on legislation

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