金属氧化物避雷器的巡检项目有()。
A.带电测试
B.外观检查
C.红外测温
D.交流耐压
参考答案:B, C
— Hi, Betty. Shall we go swimming this Sunday?
— This Sunday? I am sorry. I have a lot of homework _____ this Sunday. [ ]
A. to do
B. done
C. do
D. to be done
不属于CT伪影的是:()
A.运动伪影
B.静电伪影
C.模糊伪影
D.角度伪影
E.环状伪影