如果关于x的一元二次方程kx²﹣$\sqrt{2k+1}$x+1=0有两个不相等的实数根，那么k的取值范围是____ 

周某向一诈骗团伙出售他人电话号码及通话清单，从中获利1.6万元。被法院以非法获取公民个人信息罪判处有期徒刑一年六个月，并处罚金2000元。根据以上材料，该案表明（    ）

①违法行为必然要受到法律的制裁                      ②权利与义务具有一致性

③法律是规范社会成员行为的唯一手段             ④公民必须严格遵守宪法和法律

时间飞了，________；皱纹深了，________；泪水干了，________；太阳落了，________。

①每一个泪痕生动起来     ②梦的脚印留了下来

③月亮的笑容浮现出来    ④躺在里面的故事丰盈起来

上海到南京的T722次特快列车运动时刻表如下，根据列车运行时刻表计算：

（1）列车由上海驶往南京全程的平均速度．

（2）列车在哪个路段运行得最快？在哪个路段运行得最慢？

    Jack is very fat. He is worried about his health, so he goes to see his ____.

    "You are 100 kilograms. It's very ____. You must lose about 20 kilograms." The doctor told him.

    "Oh, what should I do, Doctor?"

    "You should ____5 kilometers a day for a month."

    Jack goes home and does these things.____days later, he calls the doctor.

    "Doctor," he says, "I'm calling to tell you about my weight(重量). I'm 80 kilograms now. But I'm 150 kilometers away from ____. I don't know how to get back!