A:卵生
B:胎生
C:变态发育
D:哺乳
按要求完成下面各句, 每空一词 (含缩写)。
Do you think Paul looks like his father? (改为同义句)
Do you think Paul ____ ____ his father?
下列纬线圈中最长的一条是( )
本初子午线是( )