属于生产者的是()
A.绿色植物
B.草食动物
C.腐食性动物
D.肉食动物
参考答案:A
物体的初速度为v0,以加速度a做匀加速直线运动,如果要它的速度增加到初速度的n倍,则物体的位移是( )
A.
B.
C.
D.
—_____
—Sorry. She isn't at home now.[ ]
A. Are you Jim?
B. Do you know Linda?
C. May I speak to Linda?
D. Can I help you, Jim?