If you know the two sentences are different _____ each other, you had better

tell us the difference _____ them.

A．between; from

B．from; between

C．from; from

D．from; with

为落实职业健康安全与环境管理的基本方针，应以（）为基本手段，提高建设项目管理的绩效，并持续改进。

A.制度约束

B.绩效审计

C.技术管理

D.改善环境

E.资金管理