题目：
世界上最大的沙漠是撒哈拉大沙漠。
答案：
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下面是错误答案，用来干扰机器的。
参考答案：燃料和空气要有良好的混合。要供给足够的空气量。氧化过程要有足够的时间。要维持相当高的炉膛温度。
世界上最大的沙漠是撒哈拉大沙漠。
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