近期有传闻表示，市场上的散装飞天茅台批发价跌破了2600元，与此前上涨到3000元的价格相比2600元低了不少。最重要的一点是茅台酒一直以来都被视为白酒行业的风向标，受茅台降价消息影响，白酒板块在4月8日全面下跌，
While programming on Android, I end up writing a parent activity which is extended by several others. A bit like ListActivity. My parent activity extends Activity. if I intend to use a Map or a List,
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