1．根据上图描述网络广告支出比例的变化； 2．说明这种变化的原因； 3．指出其对人们的影响和趋势。 Changes in the Percentage of Internet Advertisement

A．He doesn’t want to help.
B．He isn’t able to work.
C．He’ll help her later.
D．He’d like to work here.

A．Less expensive.
B．More comfortable.
C．Specific fibers for specific purposes.
D．More advanced.