下列计算错误的是( )
A:(﹣2x)3=﹣2x3
B:﹣a2•a=﹣a3
C:(﹣x)9+(﹣x)9=﹣2x9
D:(﹣2a3)2=4a6
一 Excuse me, may I come in?
一 Not yet. Please wait on your chair your name is called.
在合适的空格里画“T”.
____ with the size of the whole earth, the highest mountain doesn't see m high at all.