计算(﹣1)×3的结果是( )
A:-3
B:-2
C:2
D:3
下列能源中,属于可再生能源的是()
There are some____on the desk.Let's draw some pictures with them.
—It's a very nice , but I really can't accept it.
粮食的生产经过播种、施肥、收割和加工四个过程。( )