人参之王紫鑫药业的股票6月5日再次跌停。截止到6月5日收盘时，紫鑫药业股票的价格是每股0.55元。股票价格已经连续12个交易日低于每股一元。
The UISearchDisplayController is very handy and implementing search is pretty straightforward. However, I bump into problem when, in my app, I want to display search result with empty search string b
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