适合于高锰酸钾法直接测定的耗氧量范围是不超过( )。
A.5mg/L
B.10mg/L
C.15mg/L
D.20mg/L
参考答案:A
Being assigned as the project manager to a project you perform earned value Analysis and find the following results:EV=250000;PV=200000;AC=275000;BAC=500000.What is right ?()
A.EAC=400000
B.EAC=550000
C.BTC=400000
D.ETC=75000
从政府制定政策的角度,就材料所反映的问题提出对策建议。要求:有针对性,有条理,切实可行。字数不超过350字。