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某投机者预计大连商品交易所的玉米期货价格将上升，并且将持续上升，于是买入了五笔大连商品交易所的玉米期货合约。买入价格和对应的买入数量如下表所示，则可推测第三笔的买入平均价是（）。

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某投机者预计大连商品交易所的玉米期货价格将上升，并且将持续上升，于是买入了五笔大连商品交易所的—帮考网题库

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