选 字填空。
娘 朗 创 苍 冻 狠
____心 姑____ ____造 ____读 ____疮 ____天
在△ABC中,DE∥BC,AE:EC=2:3,DE=4,则BC等于( )
The fact that so many people still smoke that we need a nationwide campaign _________ the awareness of the dangers of smoking.