设有一线圈,其电阻可忽略不计,电感L=0.035H,接在电压UL=220V、频率f=50Hz的交流电源上,则感抗为()Ω。
A.5
B.11
C.14
参考答案:B
I know that half of ____ I spend _____ is wasted.
A.that; to advertising
B.what; to advertise
C.what; on advertising
D.what ; on advertise
企业家政府理论主张政府采用企业那样的运作方式。