求助：peterson's中的一道SC
studetns can experience thephysical fact of gravity every time { they note that a very heavy stone and a very light stone, dropped, hit the floor at the same moment.}A.
B.they note that the dropping a very heavy stone and a very light stone, they will hit the floor at the same moment.
C.the note that a cery heavy stone and a very light stone, having been, dropped, hit the floor at the same moment.
D. they note that hitting the floor at the same moment is the result of a very heavy stone and a very light stone dropping.
E.drop a very heavy stone and a very light stone and note that the stones hit the floor at the same moment.
请问那个那个是正确答案阿..谢谢!! 打错太多了。先去修改吧。特别要注意标点，因为这些题目要看标点的。C 那里是不是多了一个逗点？ good point. thx
页:
[1]