A:disagreed
B:agreed
C:approved
D:supposed
His order is that all of us ____(get) there before 5 o'clock.
平面上3条互不重合的直线交于一点,其中对顶角有( )
某中学组织夏令营活动,在当地某个山区(如图所示)考察,按预定计划需搭帐篷宿营.下列说法正确的是( )