题目内容

Listen again. Circle D for Dreamer, P for Partner, T for Thinker, or A for Artist for each sentence. Sometimes, more than one answer is possible. 1 This person wants to be in a group.2 These people are often hardworking and organized.3 These people like to be free.4 These people are competitive.5 These people often work as teachers.6 These people often work as politicians.7 Lance Armstrong is an example of the personality type.8 Harry Potter is an example of this personality type.

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Listen to a conversation between two interviewers. What are they talking about? Circle the answer.

A. travel plan
B. sales problem
C. job applicants

对乙醇一水系统,用普通精馏方法进行分离,只要塔板数足够,可以得到纯度为0.98(摩尔分数)以上的纯酒精。

A. 对
B. 错

精馏的操作线为直线,主要是因为( )

A. 理论板假设
B. 理想物系
C. 塔项泡点回离
D. 恒摩尔流假设

加压精馏常用于分离混合物的沸点较()的情况。

A. 高
B. 低
C. 远
D. 近

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