A:one after another
B:one by one
C:little by little
D:step by ste
—Who won the election for mayor?
—A man ________ to represent every minority group in the city.
下列动物中,呼吸器官相同的一组是( )
(2015•绵阳)预防传染病传播的宣传图画中,下列哪一项不是艾滋病的传播途径( )
加线词的用法与其他三项不同的是( )