一Is Amy answering the phone?
一
A:Yes,she does.
B:No,he isn't.
C:No,she is writing a letter.
形近字组词
燥____ 滴____
噪____ 摘____
如图,下列图形是将正三角形按一定规律排列,则第5个图形中所有正三角形的个数有____.