伏尔加河被俄罗斯人誉为“母亲伏尔加”，是世界最长的河流．（判断对错）

7.8－6x=0.48

x=____

过去几年，禽流感在全球呈现蔓延之势。为了防治禽流感，各地开始大规模捕杀家禽。下图是电影《我不是鸡》MV的图。读图，电影《我不是鸡》MV可以说是向人类发出的呐喊。从可持续发展的角度分析，人类的这种做法违反了（    ）

    Xiao Qing is my friend. He is thirteen years old. He is in a big school. There is a playground in the middle of his school. The red classroom building is on its left and on its right is the library. Behind the playground is the dining hall. Xiao Qing and his classmates have lunch there from Monday to Friday. Every day they can eat meat. Today is Friday. They eat beef .There is soup, on Wednesday. It's Xiao Qing's favourite. Basketball is his favourite sport. He plays it on Tuesday and Thursday afternoon. But his classmates play football and jianzi. Today is Xiao Qing's birthday. He wants a football. So he can play it with his classmates.