教师用电邮、即时讯息、电话或传真回答学生的问题。
Instructors answer student questions by e-mail, instant message, phone or fax.
在日本，绿色和平组织正通过一些以在校学生为主要宣传对象的动画片来传播他们反对捕鲸的讯息。
Greenpeace is using an animated film in Japan, which also features school children, to get its anti-whaling message across.
插图和图解帮助学生理解化学架构和回应，并且许多桌子提出大量参考讯息。
Illustrations and diagrams help the student understand chemical structures and reactions, and numerous tables present a wealth of reference information.
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