You might as well expect a river to flow backward us carrying out the plan.A. than stop B

问题补充：

You might as well expect a river to flow backward us carrying out the plan.

A. than stop

B. as to stop

C. as stop

D. so as to stop

答案：

A. than stop

B. as to stop

(答案→)C. as stop

D. so as to stop

解析：考查惯用法。might as well do...as do...是一个句型，表示“做……与（做）……一样”。