网址:http://m.1010jiajiao.com/timu3_id_508696[举报]
设正数
[
A
B
C
D
设正数x,y满足log2(x+y+3)=log2x+log2y,则x+y的取值范围是
(0,6]
[6,+∞)
[1+,+∞)
(0,1+]