A:being swallowed
B:swallowed
C:to be swallowed
D:having swallowed
(2012•滦南县)如图为四幅区域示意图,按比例尺从小到大顺序排列的是( )
如下短句或词语涉及到的知识与光的直线传播无关的是( )
The song sounds beautiful and it makes me _________ my hometown.
函数y=1x-1的自变量x的取值范围是( )