We some robots at home in the future, and there some in the office,too.
A:will have; will have
B:have; will be
C:will have; will be
D:will have; are
已知△ABC利用斜二测画法画出的直观图是边长为2的正三角形,则△ABC的面积为( )
我国幅员辽阔,各地方言不一致,汉文字却是统一的。这是因为( )
Whose pen is it? It____ Peter's. His name is on the cover.
已知△ABC的三边分别长为a、b、c,且满足(a﹣17)2+|b﹣15|+c2﹣16c+64=0,则△ABC是( )