单项选择题
A.cost per unitB.uniformity of outputC.labor content of jobsD.customer contactE.measurement of productivity
In some European nations，the working people may face mu...
单项选择题In some European nations，the working people may face much higher taxes because（）.
A.the nation needs more and more moneyB.the retired people become more and moreC.the number of deaths becomes more and moreD.the working chances become more and more
China has cut its rate of population growth by（）since 1...
单项选择题China has cut its rate of population growth by（）since 1970.
A.50%B.75%C.150%D.1.5%
Which of the following is not mentioned in the passage ...
单项选择题Which of the following is not mentioned in the passage as a reason for birth rate drop？（）
A.More men and women marry late.B.More women are going to work.C.More governments support family planning.D.More men and women decide to remain single.
