节能主要通过的两种途径是()。
A.技术途径和管理途径
B.运输途径和生产径途
参考答案:A
关于x的不等式(5 – 2m)x > -3的解是正数,那么m所能取的最小整数是__________。
The concept of the () states that changes related to one requirement-scope,time or cost will at least influence one other element.
A.three-point estimation
B.triple constraint
C.three wise men
D.three needs theory