如图所示的装置中,物体B和动滑轮总重10N,且恰好匀速下降.则A物体受到的摩擦力的方向和大小为( )
A.水平向右5N
B.水平向右10N
C.水平向左10N
D.水平向左5N
答案:D
— I ran into ______ back of ______ truck yesterday and damaged my car badly.
— I suppose you were driving too fast.[ ]
A. the; the
B. a; a
C. the; a
D. a; the
下列各句中“少”不读“shào”的是()
A.然火少则生气,火壮则食气
B.肾家之少火,游行其间
C.若命门火衰,少火几于熄矣
D.纵少觉悟,感叹恨于所遇之初
E.有一少年新娶,未几出痘