【单选题】CSS作为一种 ( ) ,用于为HTML文档定义布局。
【单选题】( )作为一种样式表语言,用于为HTML文档定义布局。
【单选题】CSS作为一种样式表语言,用于为()定义布局
【单选题】The author' s main concern in this .passage is to______
A.
point out the role the workaholic plays in the American economy.
B.
defend people who are addicted to work.
C.
encourage us not to worry about our imperfection.
D.
consider the difficulties that confront us at middle-age.
【单选题】()作为一种样式表语言,用于为HTML文档定义布局。