His order is that all of us ____(get) there before 5 o'clock.
菱形ABCD的周长为16,∠A=60°,则BD的长为( )
如图,矩形ABCD中,AB=3,AD=1,AB在数轴上,若以点A为圆心,对角线AC的长为半径作弧交数轴于点M,则点M表示的数为( )
(2015•松山区)鸟类和哺乳类体温不会随环境变化而变化,是恒温动物.____ (判断对错)