A:in case
B:so that
C:in order
D:as if
阳光通过窗口AB照射到室内,在地面上留下2.7米的亮区DE,(如图所示),已知亮区到窗口下的墙角的距离EC=8.7米,窗口高AB=1.8米,则窗口底边离地面的高BC为( )
下列说法中正确的是( )
Yesterday Lucy told us such good that we are all amazed at it.