电视节目中广告很多
2．广告的利与弊
3．我的观点
On Television Advertisement
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A．To get information from World Wide Web.
B．To aid visualization facilitate collective activity among students.
C．Aid visualization and simulate complex environments.
D．Support analysis and synthesis of information.

A．The children are certain to live shorter lives than their parents because of obesiity.
B．Obesity is the main cost driver in Midicare.
C．Obesity imposes an economic burdon upon Americans.
D．Those obese Americans are paying for the cost of obesity.