Which of the following method should we use when dealing with experiments with more than one factor? A: Best-guess B: Factorial experiment C: One-factor-at-a-time D: Blocking

If is an economic factor, is time factor, is the observation data of factor at time , then is: A: A. Time series of economic behavior B: B. Economic behavior index sequence C: C. Economic behavior sector sequence D: D. Horizontal sequence of economic behavior

Time would appear to be the ____________ factor in this whole drama.

Which one is not the driving factor of Green Marketing? ( ).

Which one is NOT the important factor that one needs to prepare and deliver a successful presentation according to the lecturer?

Actually, human factor is one of the primary reasons for loss of control.

___ waste water was put into the rivers, and lakes which were badly polluted. A: At one time B: At a time C: One time D: A time

And then one more time … out and back in.句中one more time 表示（  ）。

中国大学MOOC: Which one is not the of factor of demographic audience analysis?

An inch of time is worth an inch of gold, but it is hard to buy one inch of time with one inch of ____.