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beta 版通常是指( )。
A.正式版
B.外部测试版
C.演示版
D.内部测试版
B.外部测试版
C.演示版
D.内部测试版
参考答案
参考解析
解析:Beta 版本是第一个对外公开的软件版本,是由公众参与的测试版本。
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