The base class in Listing 7 extends android.os.AsyncTask.
清单7中的基类扩展了android.os.AsyncTask。
How can families preserve this rich 7 know-ledge base?
一个家族如何保留其丰富的知识库呢？
Who has 7 globally-scaled plants, international quality products and a competitive cost production base.
拥有7家世界级工厂，并拥有国际级的优质产品和成本竞争优势。
Who has 7 globally-scaled plants, international quality products and a competitive cost production base.
拥有7家世界级工厂，并拥有国际级的优质产品和成本竞争优势。
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