The room is full of people and they are discussing an important thing.
A:made up of
B:part of
C:filled with
这首七律诗的颔联运用了什么修辞手法?有什么表达效果?上下句有何联系?
一只蚂蚁现在A点,它要到B点去找食物吃。它应该怎样爬路线短一些?
一次数学活动课上,小聪将一副三角板按图中方式叠放, 则∠α的度数为…( )