东东出Th时,不会翻身也不会爬。在爸妈的精心照料下,三个月会抬头,然后会翻身,接着是坐、爬、站,1岁左右会直立行走, 说明儿童的动作发展遵循的顺序是( )
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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