What is the main idea of this video clip?
A. Children should resist junk food.
B. Snacks should be marketed in an entertaining way.
C. Fast food is mentioned as an example of unhealthy ads.
D. It is difficult for kids to stay away from marketing ads.
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Directions: Gap fillingexpel; expend;organ;excess; expand1.The Security Service is an important ________of the State2.An________of house plants in a small flat can be oppressive3.An American academic was _________from the country yesterday.4.Children _________a lot of energy and may need more high-energy food than adults.5.The city's population __________rapidly in the 1970s.
实施生产延迟策略的关键是确定产品的( )。
A. 需求量
B. 差异化流程
C. 交货期
D. 生产成本
“风险”形成的必要条件是( )。
A. 外界环境的变化
B. 风险结果
C. 风险因素
D. 风险事件