幼儿园的环境创设主要是指
4.心理环境是学前儿童有效进行科学活动的必要保障,幼儿园科学教育心理环境的创设,主要从( )两方面展开。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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