We also find that Share A markets are more efficient than Share B markets, but there is no clear evidence on which stock exchanges market, Shanghai or Shenzhen, is more efficient.

我们还发现，A 股市场比B 股市场有效性相对更高，但没有系统的证据显示沪深股市谁的有效性更高。

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This cargo transit line opened for Latin American exports in Shenzhen to provide a efficient logistics channel.

这条货运中转线的开辟，为深圳产品出口拉美提供了一条快捷的物流通道。

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