题型：名词解释 He _____ as a national hero for winning the first gold medal for his country in the Olympics.A. regarded B. was regarded C. has regarded D. had been regarded 查看答案
题型：名词解释 配制100mL1.0mol•L-1的NaOH溶液，下列情况会导致溶液浓度偏高的是（ ）A．容量瓶使用前有少量蒸馏水B．配制过程中，未用蒸馏水洗涤烧杯和玻璃棒C．在转移过程中有溶液撒在外面D．定容时俯视确定凹液面与刻度线相切 查看答案