with the help of 查看更多

 

題目列表(包括答案和解析)

With the help of high technology, more and more new substances____in the past years.

A. discovered   B. have discovered   C. had been discovered   D. have been discovered

查看答案和解析>>

With the help of the guide dog, the blind man found the way go home.

查看答案和解析>>

With the help of high technology, more and more new substances ______ in the past years.

   A. discovered          B. have discovered

C. had been discovered  D. have been discovered

查看答案和解析>>

With the help of high technology, more and more new substances ______ in the past years.

   A. discovered        B. have discovered 

C. had been discovered  D. have been discovered

查看答案和解析>>

With the help of the new equipment, our factory produced ________ VCD players in 2001 as the year before.

A. as many as twice      B. twice more than       C. as twice many   D. twice as many

查看答案和解析>>


同步練習(xí)冊答案