And although scientists say the technology is not yet good enough to commit fraud(假冒), would the synthesized(合成的) voices at last be able to trick people into thinking that they were getting phone calls or digital audio recordings from people they know?

　　Even Mr Fruchterman, one of ATT lab's possible first customers, said he wondered what the new technology might bring.Just like you can't trust a photograph any more.he said,you won't be able to trust a voice either.

　　68?With the help of the speech software, it is most possible .

　　A?to improve a famous person's speech

　　B?to say what you want in another's voice

　　C?to make a speech much more easily

　　D?to help you to find a better job

　　69?If the speech software were widely used, .

　　A?people would no longer believe each other

　　B?it would not be necessary to go for a speech by a famous person

　　C?no radio or TV broadcasters would be needed

　　D?recording of a voice alone would not be taken as a proof in the court

　　70?According to the passage, you can infer that .

　　A?the software will turn out to be an immediate success in the market.

　　B?the government will forbid the sale of the software in the market.

　　C?it's hard to decide whether the software will enjoy popularity.

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