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【单选题】
如果我们想实现"先把要写入文件的数据先缓存到内存中,再把缓存中的数据写入文件中"的功能时,则需要使用下列哪个类?( )
A.
FileReader
B.
OutputStream
C.
FilterOutputStream
D.
DataOutputStream
拍照语音搜题，微信中搜索"皮皮学"使用
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