题目内容

The deepening love and close relationship between the writer and the mother grew with the pine tree.

A. 对
B. 错

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The daughter guessed that her mother was dying before her mother told her the truth.

A. 对
B. 错

The writer's sons came to the pine tree often after their grandmother died because their grandmother used to take them there.

A. 对
B. 错

Complete the following sentences with the given words you have learned in Unit 3.

精馏的操作线为直线,主要是因为

A. 理论板假定
B. 塔顶泡点回流
C. 理想物系
D. 恒摩尔流假定

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