------ The English exam is not difficult, is it?------ ________, even Tom ________ to the top students failed in it.A. Yes; belonged B. No; belonged C. Yes, belonging D. No, belonging 答案:C
如图所示,放在水平地面上的物体A、B高度相等,A对地面的压力小于B对地面的压力.若在两物体上部沿水平方向切去相同的厚度,则切去部分的持量、的关系是
[ ]
A.
一定大于
B.
可能大于
C.
一定小于
D.
可能等于