I can talk to ____________ mother.[ ]
A. Danny
B. Danny's
答案:B
若(a2+b2)(a2+b2﹣2)=8,则a2+b2= [ ]
A.﹣2
B.4
C.4或﹣2
D.﹣4或2
A.水从高处向低处流
B.风吹树叶动
C.尘土飞扬
D.公园里花香四溢