* 新增当日价格，并返回该价格的跨度
Increased burning of fossil fuels like coal and oil over the last two centuries has released greenhouse gases like CO2 into the atmosphere, which have warmed our planet.
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Kevin Church/BBC News
The obvious lesson is: always provide your agents with design hints and extensive documentation about what they are going to do. Such documentation can be obtained by the agent itself. And, also, make sure the agent has a markdown file with the rules of how to perform the coding tasks, and a trace of what it is doing, that is updated and read again quite often.