A:有两个不相等的实数根
B:有两个相等的实数根
C:没有实数根
D:无法确定
76-9-50=____
6×3÷2=____
63÷9×8=____
(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.
①在聊天室中,使用网名,不用真实姓名
②不恶意制造、传播谣言
③不侮辱他人人格
④不利用网络进行诈骗活动