心。在高中时，我选了物理，化学作为我的选修科目，当中化学成绩排在中上。
Heart. In high school, I chose physics, chemistry as my elective subjects, which results in chemical.
介绍性或高级课程的自然地理，海洋，水文和化学是所有科目供选择选修科目。
Introductory or advanced courses in physical geography, oceanography, hydrology and chemistry are all subjects for consideration in choosing electives.
在完成化学专业学位的同时，她开始选修动物行为、心理，交际方面的课程。
While finishing up her chemistry degree, she began taking courses in animal behavior, psychology, and communication.
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