热传导只发生在固体和静止的流体中。（）

If all your answers to the following three questions are “yes”, you will feel empowered or self－motivated, please choose them:（）. 点击查看答案

商业银行因履行保证责任垫付资金的，对垫付的资金，自垫付之日起按正常贷款利率计收利息。() 点击查看答案&解析