网址:http://m.1010jiajiao.com/timu3_id_546709[举报]
lgx=0有解的区域是
A.(0,1]
B.(1,10]
C.(10,100]
D.(100,+∞)
lgx-=0有解的区域是
(0,1]
(1,10]
(10,100]
(100,+∞)
有解的区域是