“海上升明白,天涯共此时”是谁的名句()
A、王勃
B、张九龄
C、李白
参考答案:B
—I can't find beef in the fridge. Shall I buy some?
—Yes, please.
A.some
B.every
C.any
D.no
如图所示,物体M在斜向右下方的推力F作用下,在水平地面上恰好做匀速运动,则推力F和物体M受到的摩擦力的合力方向是
A.竖直向下
B.竖直向上
C.斜向下偏左
D.斜向下偏右