问题
单项选择题
为降低脱苯塔的温度，焦化厂采用（）法。
A.管式炉预热
B.水蒸气蒸馏
C.真空蒸馏
答案
参考答案：B
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为降低脱苯塔的温度，焦化厂采用（）法。
A.管式炉预热
B.水蒸气蒸馏
C.真空蒸馏
参考答案：B
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