Line A is shorter than line B.
如图所示,一个圆柱状的轻质纸筒顺着一个倾斜的木板滚下,离开板后,不计空气阻力,纸筒受到 ____ 的作用,纸筒将落到____ (选填“A侧”、“B点”、“C侧”).
5的倒数是
It's n____ to the library.