为了防止间接电击,可采用()等安全措施。
A、保护接地、接零
B、绝缘
C、短路保护
D、屏蔽
参考答案:A
—____________?
—It was sunny and windy.
A. What was the weather
B.What was the weather like
C. How was the temperature
D.What was the temperature
定点医疗机构应根据参保人员的病情和经济承受能力,在保证医疗安全和质量的前提下,选择使用()的医用材料。
A.价格适中
B.价格较高
C.价格较低
D.最贵的