A:“E”
B:“W”
C:“N”
D:“S”
若方程f(x)﹣2=0在(﹣∞,0)内有解,则y=f(x)的图象是( )
文字是人类文明的重要标志,文字的产生和演变见证并记录了世界文明发展的历程。观察下面图片,回答问题。
如下图所示的图形是由7个完全相同的小正方体组成的立体图形,则下面四个平面图形中不是这个立体图形的三视图的是( )
—Jack hasn't taken his piano lessons for a long time.
—He is considering _________ his piano course and spending more time on his study.