更多"A new technique （ ）, the yields as "的相关试题:
[单项选择]A new technique（），the yields as a whole increased by 20 percent.
A. working out
B. having worked out
C. having been worked out
D. to have been worked out
[单项选择]A new technique（）, the yields as a whole increase by 20 percent.
A. working out
B. having been worked out
C. having worked out
D. to have been worked out
[单项选择]A new technique ______ , the yields as a whole increased by 20 percent.
A. working out
B. having worked out
C. having been worked out
D. to have been worked out
[单项选择]A new technique having been worked out, the yields as a whole increased by 20 percent.（）
A. 一项新技术已经被研究出来，总产量在整体上已经提高了20%。
B. 一项新技术已经被研究出来，总产量提高了20%。
C. 由于研究出了一种新技术，总产量提高了20%。
D. 由于研究出了一种新技术，总产量在整体上已经提高了20%。
[单项选择]After the new technique was introduced, the factory produced（）tractors in 1998 than the year before.
A. as twice many
B. as many twice
C. twice as many
D. twice many as
[单项选择]Since the introduction of the new technique, the production cost ______ greatly.
A. reduces
B. is reduced
C. is reducing
D. has been reduced
[单项选择]A new technique（）, the gross output increased by 20 percent.
A. working out
B. having worked out
C. having been worked out
D. to have been worked out
[单项选择]From 1965 to 1978 American consumer prices increased at an average annual rate of 5.7 percent. This ominous shift was followed by consumer price gains of 13.3 percent in 1979.（ ）
A. promising
B. overwhelming
C. threatening
D. astonishing
[单项选择]The author believes the real cause for the increase of divorces today is that______.
A. people have too many sources of entertainment
B. people have less internal restraints
C. people no longer enjoy family life as they did before
D. people do not want to be confined by marital ties
[单项选择]It is believed that a new technique to ______ will probably be found.
A. recycle old aluminum products
B. discover more bauxite ores
C. make aluminum by putting ore particles under water
D. take out aluminum magnetically from poorer ores
