（三）国务院税务、财政主管部门确定的其他纳税人。
Every additional bureaucratic hurdle reduces diversity in the software ecosystem and concentrates power in the hands of large established players who can more easily absorb such compliance costs.
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const strict = Stream.push({ highWaterMark: 2, backpressure: 'strict' });
5.1 输入标准（统一请求模板）