气候是一个地方多年的_____________ 状况，一般变化_________ 。
天气平均；不大
My brother is tall with curly hair, wearing a pair of glasses. You ______ him very easily .[ ]
A. recognized
B. have recognized
C. will recognize
D. had recognized
已知，那么=（）。
A.A
B.B
C.C
D.D
，那么
=（）。