--- What do you think of the dress?--- Wonderful. I don't think I can find a ________ one.
A:good
B:bad
C:better
D:worst
一物体从斜面顶端由静止开始匀加速下滑到斜面底端,最初3s内经过的路程为s1,最后3s内经过的路程为s2,已知s2﹣s1=6m,s1:s2=3:7,则斜面长度为____m.
按课文内容填空
____在前面带路,____吹向我们。我们像____一样,来到____里,来到____上。