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JPA（Java Persistence API)是Sun官方提出的Java持久化规范。它为Java开发人员提供了一种对象/关联映射工具来管理Java应用中的关系数据。（)
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更多“JPA(Java Persistence API)是Sun官…”相关的问题
I respect your persistence after the failure, but you ______ (不该把错误推到别人身上).
A.@Entity和@Table都是标注在类上
B.@Entity是JPA的注解，@Table是Hibernate的注解
C.@Entity和@Table都可以定义表名。当在@Entity定义表名时，@Table可以不加
D.@Entity只能标识实体类和定义表名，而@Table不但可以定义表名，还可以配置索引
What is the main idea of the passage？
A．With determination and persistence, Juliette started Girl Scout troops all over the world.
B．Juliette, a lucky deaf woman, always got whatever she wanted.
C．Juliette, traveled to many different places in her life time but ended up back in Savannah.
D．Without Juliette, the Girl Scouts would still be a British phenomenon.
Some fish have a greater ________ for acid water than others.
A) tolerance
B) resistance
C) dependence
D) persistence
听力原文： Many people suffer from some form. of extreme anxiety. Some experience occasional attacks of panic for no apparent reason. Others go around in a state of continual uneasiness. The usual way of controlling anxiety is with drugs, which cure none of the conditions described but do help patients man age their anxiety. Patients who take these drugs say that they are able to work, to sleep, and to go to places they had feared to visit. But the effects of the drugs on the human body, especially on the nervous system, have been unknown.
We have started a series of studies to identify the effects of the drugs on the brain and have gained some insight into the costs and benefits of the anti anxiety drugs. They are valuable because they can reduce the effects of anticipated failure, frustration, and disappointment. But their value demands a price. Two effects of the drugs are obviously harmful. They reduce a person's ability to react to changes in the environment; and more important, they keep a person from developing persistence in the face of unexpected troubles. Since it is fairly sure that people will meet problems they had not expected, this effect may make the price of anti-anxiety drugs too high.
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A．They help to cure anxiety.
B．They help patients to gain insight into the cause of anxiety.
C．They help to control anxiety.
D．They help patients to work efficiently.
A.java.sun.com
B.https://www.oracle.com/technetwork/java/index.html
C.java.com
D.jcp.org
