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【简答题】
如果想要实现跨程序共享数据的功能,可以通过新建一个类去继承 ContentProvider 类的方式来创建一个自己的内容提供器。 ContentProvider 类中通常有哪六个抽象方法需要重写 ?
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反馈参考答案：
举一反三
【单选题】The cylinder head contains_______for cooling in the assembled engine.
A.
Oil passages
B.
Water passages
C.
A fan
D.
An oil cooler
【单选题】Cylinder head contains water ______ for cooling engine.
A.
jacket
B.
jacketed
C.
jackets
D.
pipe
【简答题】在全屏幕编辑状态下，按（）键可保存文件并退出此状态，按（）键或（）键放弃存盘退出。
【单选题】The head of the sperm contains______________.
A.
the nuclei and the acrosome
B.
the nuclei and the flagellum
C.
the nucleus and the acrosome
D.
the nucleus and the flagellum
【单选题】Cylinder head contains water ______ for cooling engine.
A.
jacket
B.
pump
C.
tank
D.
pipe
【单选题】The cylinder head contains for cooling in the assembled engine.
A.
oil passage
B.
water jackets
C.
a fan
D.
an oil cooler
【单选题】Cylinder head contains ______ for cooling in the assembled engine.
A.
spark-plug holes
B.
water jackets
C.
valves pockets
D.
grooves
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