10kV带电作业绝缘工具工频耐压预防性试验电压为35kV。
参考答案：错
解析：10kV带电作业绝缘工具工频耐压预防性试验电压为45kV。
Last week, we had a great time _____ singing and dancing made by ourselves during the
National Day Celebration (庆祝). [ ]
A. to enjoy
B. enjoys
C. enjoyed
D. enjoying
B型香料烟长度依次划分为≤8、10、14、（）、（）cm。
