第五十条 办理退（免）税的出口业务发生销售折让、中止或者退回等情形的，纳税人应当缴回已退（免）税款。
stack.pop(); // 弹出无效候选值
月之暗面将底层模型掌握在自己手里，也同时获得了上层应用的定价权，不会因为API层面的调价而承受成本压力，这种成本优势也传递到了用户端。，更多细节参见Line官方版本下载
Go to technology。业内人士推荐同城约会作为进阶阅读
constant size make and thus a stack-allocated backing store, and
Prototype pollution defense: One test patches Object.prototype.then to intercept promise resolutions, then verifies that pipeTo() and tee() operations don't leak internal values through the prototype chain. This tests a security property that only exists because the spec's promise-heavy internals create an attack surface.，详情可参考搜狗输入法2026