刺伤的特点是()
A.伤道内污染较轻
B.伤情一般不重
C.伤口的大小一般可以反映伤情的轻重
D.伤口小,伤道深,可能伤及深部内脏
E.不会造成大出血
参考答案:D
下列关于重力的说法中正确的是( )
A.只有静止在地面上的物体才会受到重力
B.重力是由于地球的吸引而产生的,它的方向竖直向下
C.运动的物体也可以受到重力
D.重心不一定在物体上
-------I heard that Tom failed in the driving test again .
------Just his luck ,_____
A He has to face the fatted calf
B He has to face the music
C He must be the apple of his parents' eye
D He must be a black sheep