和田玉分布于昆仑山,是由大理岩与岩浆接触形成的玉石,其中产于山上原生矿处的称为山料,产于河床中磨圆程度好的称为籽料。完成下题。
地理环境是文化形成的物质基础,下列地理事物与其环境不匹配的是( )
从﹣3,﹣1,0,2四个数中任选两个,则这两个数的乘积为负数的概率为( )
Today is Monday. Linda is at school. She has Chinese,English and PE in the morning. She doesn't have Music today. She has Maths and Art in the afternoon. She has Music on Fridays.