// 易错点2：漏写stack.length判断 → 栈空时访问stack[-1]会报错
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习近平总书记深刻指出，高质量发展应该不断提高劳动效率、资本效率、土地效率、资源效率、环境效率，不断提升科技进步贡献率，不断提高全要素生产率。
"A lot of the work we're doing today by maintaining turbines and gas compressors will be shifted to maintaining high pressure pumps that inject the CO2," maintenance manager, Peter Bjerre told the BBC.
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