问题详情

The professor mentions an experiment done five to ten years ago on the wind speed necessary to move rocks. What opinion does the professor express about the experiment？

A．The researchers reached the correct conclusion despite some miscalculations.

B．The researchers should have chosen a different location for their experiment.

C．The experiment should have been conducted on wetter ground.

D．The experiment was not continued long enough to achieve clear results.

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！