--- Look! So many colorful bicycles in two lines over there.
--- They're for public. This ______ of green smart traffic is everywhere in Xiangyang city.
A:number
B:pair
C:kind
D:piece
战国时期提倡兼爱、非攻的思想家是( )
阅读下面一段文字,完成下列题目。
飞蛾趋光,夸父逐日,所有的事物都在寻找光明、快乐、正面的能量。正能量让萎靡( )不振的你鼓起前进的勇气,正能量让迷wǎng( )无助的你拨开阴mái( ),重见阳光;正能量让自怨自艾( )的你重整旗鼓,东山再起。