空载高压长线路的末端电压（）始端电压。
A、低于
B、高于
C、等于
D、不一定
参考答案：B
The Estimate Activity Resource process is closely coordinated with the （73）process.
A．Estimate Costs
B．Sequence Activities
C．Plan Communications
D．Conduct Procurements
联合作用的类型？
