题目

阅读短文及文后选项,选出可以填入空白处的最佳选项。Learn from the virusThe epidemic (疫情) is scary. But it’s not all bad. In fact, we can learn some lessons from it.Learn to be responsibleWhen facing the epidemic, everyone has to be ready. People have different responsibilities (责任). Doctors fight on the frontline to treat patients. Police officers stay in position to keep us safe. Delivery men (快递员) deliver daily things to us. What are your responsibilities?【1】.Learn to respectFeeling afraid is not a bad thing.【2】 When you respect laws, you are car下列说法中正确的是（　　）A．64的立方根是±4B．-64没有立方根C．64的平方根是±8D．64的算术平方根是4