下列有关人生殖和发育的叙述，正确的是（   ）

数据x，0，x，6，8，1中，中位数恰好是x，则整数x可能的值有（   ）个

有一包白色固体，可能含有Na₂SO₄、Na₂CO₃、Ba(NO₃)₂、NaCl中的一种或几种，取样溶于水，有白色沉淀产生，过滤后向沉淀中滴加盐酸，沉淀的质量、产生气体的质量与加入盐酸体积的关系如图所示，由此推断白色固体中（）

根据首字母或中文提示完成句子。
Tony likes talk show. But he can't s____ Chinese cooking.
Look! Tom and his family are l____ on the beach, they look happy.
We had great fun s____ in the river.
The pop singer w____ funny glasses is Johnny Dean.
I'm s____she can dance so well. She is only 7 years old.
——What e____ do you have to do?——We have to clean the classroom.
 On weekends, the shops are too c____, there are so many people in them .
——What's Lilei doing?—— He's w____ for the bus.Jenny is lazy, she n____does her homework at home.
Do you think everyone e____  their weekends?

如图，已知圆锥侧面展开图的扇形面积为65πcm²，扇形的弧长为10πcm，则圆锥母线长是（    ）