---No, _____. But you can find one on Yangfang Road.
A:there isn't.
B:it isn't
C:they aren't
D:there is
李明同学在自主学***台上输入“希特勒”三个字时,跳出的四个内容中与他无直接关系的是( )
如图①,在边长为1个单位长度的小正方形组成的网格中,△ABC的三个顶点均在格点上.
He wants to make his invention more successful, so he it for many times.
在实验设计中,下列变量中不能作为一组对照的是( )