属于昆虫纲的成虫特征为
A.体分为头、胸、腹三部分B.成虫有4对足,无翅C.成虫分躯体和颚体两部分D.体分为头胸部、腹部两部分E.以上特征均不正确
参考答案:A
把5米长的线段平均分成8份,每份长______米,每份是这条线段的______.
Half a month passed and the boy ________ all his money, so he had to turn to his friends for help.
A.ran out
B. ran out of
C.ran across
D.ran away with