题目内容

______ (Late,Lately), I have read much of Shelly's poem.

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The new houses are built too ______(near,nearly) to us.

Hunter knew _______(near,nearly )all of this already.

蒸馏操作属于

A. 动量传递操作
B. 热量传递操作
C. 质量传递操作
D. 热量传递与质量传递均有

从精馏塔顶部排出的主要是

A. 可挥发组分
B. 不挥发组分
C. 易挥发组分
D. 难挥发组分