It USES this information to create a database of backgrounds, events, objects and activities.
软件使用这些信息来创建一个背景、事件、物体和活动的数据库。
Objects and background should vary in brightness or saturation, in addition to hue, and color text on color backgrounds should also be avoided when possible.
图形和背景除了色调不同外，饱和度和亮度也应有区别。如果可能，应尽量避免在彩色背景上运用彩色文本。
Teaching management, as teaching process, is a complicated process where different social backgrounds, types of education and education levels requires different management objects, methods or means.
教学管理和教学过程一样，也是一个复杂的过程。不同的社会背景、不同的教育类型和不同的教育层次，教育管理的目标、方法、手段等是有区别的。
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