坡道阻力
参考答案:
是指列车在上坡运行时,列车自身的重量在坡道上产生的下滑分力。
患儿男,1岁。体重6kg,身长70cm,精神萎靡,皮肤弹性差,肌肉松弛。诊断是()
A.匀称性矮小
B.营养不良
C.正常
D.脱水
E.贫血
He ________to come at eight, but in fact he never comes before nine.
A.is supposing
B.supposes
C.is supposed
D.supposed