A:a8÷a4=a2
B:a2⋅a3=a6
C:(a3)2=a6
D:(−2a2)3=8a6
原始社会末期,通过推举产生部落联盟首领的办法,后人称之为“____”。
下列各项中不属于健康生活习惯的是( )
—Who is the young man?
—A famous singer. Look! Hundreds of are waiting for him.