The teacher sectioned the history class by ability ratings.

老师按能力将历史课分班。

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The solution that JPA 2.0 provides is the ability to instantiate a metamodel class named Person_ that corresponds to Person by exposing the same persistent attributes statically.

JPA 2.0 提供的解决办法通过静态地公开相同的持久化属性实例化名为 Person_的元模型类（对应于 Person）。

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Core to distributing EJB components is the ability to separate a bean's implementation (represented by a bean class) from its interface (represented by a remote or local interface).

分布ejb组件的核心是能够将bean的实现(由be an类表示)与其接口(由远程或本地接口表示)分开。

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And if we want to increase our collective ability to pay, we must do so by increasing our collective ability to earn , not by class warfare and government fiat.

FORBES: We Need To Reign In The Government Affordability Index

An experimental new class of drugs is aimed at rendering TGF-beta and CTGF ineffective by blocking their ability to bind with cell receptors.

FORBES: Scar Wars

Big Labor, much the same, buoyed by friendly legislators and the ability to carry its members into the middle class, became an enormous force in the culture.

FORBES: Big Labor Should Learn From Big Blue