第五条 纳税人开具增值税专用发票，应当分别列明销售额和增值税税额。
Social isolation，更多细节参见heLLoword翻译官方下载
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The new API has complete parallel sync versions: Stream.pullSync(), Stream.bytesSync(), Stream.textSync(), and so on. If your source and transforms are all synchronous, you can process the entire pipeline without a single promise.
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