从方框中选出下列各旬的最佳应答语。
A.It was good.Thank you.
B.Yes.I could see many stars.
C.I rode a bike yesterday.
D.We went there by plane.
E.I'm 34 kg.
利用杠杆原理的工具有:____、____、____、____、____等。
比一比,再组词。
心____ 扮____ 跪____ 贪____
芯____ 粉____ 脆____ 贫____