A:该环境中只有一个种群
B:没有天敌
C:食物充足
D:气候条件适宜
全集U=R,集合A=x|x2-4≤0,集合B=x|2x-1>1,则A∩B=
(2015•四川达州)—Excuse me, could you please tell me the way to the ? I have had too much water.—Go along the street and you will find one.