问答题

智慧树知到《中国旅游线路地理（青岛职业技术学院）》2023章节测试答案-1

答案：智慧树知到【中国旅游线路地理（青岛职业技术学院）》2023章节测试答案
绪论

1、旅游线路为主...

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Why does Mrs. Jacobs criticize Mr. Holland in the clip?
A、Because he was late for class very often.
B、Because he was off work earlier very often.
C、Because he failed to serve as a good compass for his students.
D、Because he failed to give his students a good class.

单项选择题

H2O是不对称结构分子，所以是红外活性分子。（）

A．对
B．错