A:Whose
B:What
C:When
I bought a smartphone(智能手机) yesterday, and it works well, would you like to buy ________ like this?
下图为“某城镇略图”,读图完成下列各题。
下列对数中,互为倒数的是( )
— I know your name?
— Linda.
人体免疫的三道防线:①第一道防线:____和黏膜. ②第二道防线:体内的杀菌物质和____. ③第三道防线:由____和免疫器官组成.