I _______ him in a way. Some of his ideas are right.
A:speak to
B:come to
C:stay with
D:agree with
写出字的笔顺。
山____ ____ ____
基本实验回顾.
某地平均风速5m/s,空气密度1.2Kg/m3.有一风车叶片转动时可形成半径为12m的圆面;若风车能将此圆面内10%的气流转化为电能.则该风车带动的发电机的功率是多少?