A:Are you belong to the UN peace-keeping force?
B:Which computer does this mouse belong to?
C:This strange vegetable is belong to the potato family.
D:The gold ring is belonged to her.
如图的曲线图表示血液中某种成分含量变化的趋势,该曲线不能表示( )
如图所示,一束光由空气斜射入玻璃砖,画出这束光经过玻璃砖两个面折射的光路.