A:分当(fèn)庶几 (jǐ)辟芷 (pì)潜在(qiǎn)
B:冠冕 (guàn)羁縻(mí)庚寅(yín)羞怯(què)
C:翌日(yì)攻讦(jié)拘泥(nì)趿拉 (tā)
D:鬈曲(quán)褶皱(zhě)苗裔(yī)自刭(jǐn)
如图,在Rt△ABC中,∠B=Rt∠,直角边AB、BC的长(AB<BC)是方程 x 2-7 x +12=0的两个根.点P从点A出发,以每秒1个单位的速度沿△ABC边 A→B→C→A的方向运动,运动时间为t(秒).
冬天,杨树纷纷落叶而松树却郁郁葱葱,这表明( )
--- Do you know Amy came to school this morning?
--- Her bike was broken, so she had to walk.