(Miscellaneous Dangerous Goods). Lithium batteries are different from common dangerous goods, there is no specific packaging category in the transport regulations, but this does not mean that lithium batteries are not required to be packaged for transport. The following editor takes you to understand...
直观是主体通过对直接感知到的教学材料的表层意义、表面特征进行加工，从而形成对有关事物的具体的、特殊的、感性的认识的加工过程。直观是理解科学知识的起点，是知识获得的首要环节。在实际的教学过程中，直观方式包括( )①实物直观②模像直观③言语直观