A. I am 165 centimetres tall.
B. Some people visit museums or parks.
C. They swept the streets with a broom.
D. I weigh 70 kilograms.
E. Students will have a picnic every month. !
按要求画图形.(规定每个小正方形的边长都是1厘米)
(1)把图①按2:1的比放大,放大后的图形A点的对应位置是(3,10).(2)把图①绕A点顺时针旋转90度,再把旋转后的图形向东平移8厘米.(3)在B点北偏东45°方向画一个半径2厘米的圆.
下列各物质中属于混合物的是()