100kVA以上的电力用户最大负荷月的月平均功率因数不低于()。
A.0.7
B.0.75
C.0.85
D.0.9
参考答案:D
If you have finished your homework, you could _____ cleaning and cooking.[ ]
A. help with
B. help
C. help to
D. helping
治疗紫斑阴虚火旺证的最佳选方是
A.沙参麦冬汤.
B.玉女煎
C.十灰散
D.茜根散
E.六味地黄丸