A:集权性
B:分权性
C:松散性
D:落后性
当远距离高压输送的一定功率时,输电线上损耗的功率与电路中的( )
如图,若点A的坐标为(1,, 3 ),则sin∠1=____
— Linda, how are you ________ with your new classmates?
— At first, I felt ________, but now we are good friends.