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阅读理解Most parents areworried the first time they catch their kids out in a lie. According to childand teen psychiatrist Gayani DeSilva, lying can actually be a sign of healthydevelopment in young children. Kids lie for many reasons, and much of itis normal, DeSilva says. People are not born with the knowledge ofcommunicating with others and getting their needs met. They'll experiment withdifferent communication styles and techniques until they find the ones thatwork best for them. Lying is one of those techniques.As kids get older,they become more aware of how their actions affect other肥皂的主要成分是硬脂酸钠，化学式为C17H35COONa，试求：（1）每个这样的分子中共有 个原子，（2）此物质中碳元素与氧元素的质量比为 ．