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- 单项选择题Which capability exists only in java.io.BufferedWriter?()
A、Closing an open stream.
B、Flushing an open stream.
C、Writing to an open stream.
D、Writing a line separator to an open stream.
- D
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A、Closing an open stream.
B、Flushing an open stream.
C、Writing to an open stream.
D、Writing a line separator to an open stream.
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