It’s such a difficult problem（）no one can work it out

We can guess that ______.

A．one expert's knowledge and expertise is enough to make a successful speech- recognition system

B．a good understanding of the fundamentals of speech recognition is not important if one is an expert

C．general knowledge is necessary to solve the present speech recognition problem

D．an in-depth discussion of fundamentals will solve the most difficult problem in speech-recognition

e advantages of telecommuting？（单选题）

A、One can get along well with co-workers．

B、One can work on one’s own schedule.

C、One can work for several employers．

D、One can enjoy a lot of traveling．

3、3.The passage tells us that telecommuters changejobs less often and so____________.（单选题）

A、they can get more work experience

B、they will have a longer paid holiday

C、their employers can save more money

D、their employers will give them a higherpay

4、4.The phrase“suited to”in the third paragraph means____________.（单选题）

A、acceptable for

B、difficult for

C、fit for

D、bad for

5、5.The passage is mainly about__________.（单选题）

A、a new way to work

B、John’s workingday

C、various workplaces

D、the Internet

A. some

B. on

C. a few

D. few

Which of the following is mentioned as one of the advantages of telecommuting？

A．One can get along well with co-workers.

B．One can work on one's own schedule.

C．One can work for several employers.

D．One can enjoy a lot of traveling.