问题
单项选择题
本质安全型防爆电气设备适用于（）。
A、全部电气设备
B、大功率电气设备
C、通信、监控、信号和控制等小功率电气设备
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
本质安全型防爆电气设备适用于（）。
A、全部电气设备
B、大功率电气设备
C、通信、监控、信号和控制等小功率电气设备
参考答案：C
| 完形填空。 | ||||
| There was once a young ballerina (芭蕾舞演员) who had taken ballet lessons all through her childhood. She wanted to be a leading ballet dancer, but she won't to be 1 about this. When a ballet company came to town, she went backstage after the 2 and spoke to the ballet master, "I want to be a great ballet dancer but I don't know if I have the 3 at all." The master said, " 4 for me." After a minute or two, he shook his head and said, "No, no, no, you don't have what takes to be a 5 ballerina." The young woman went home 6 . She threw the ballet slippers into the closet and never wore them again. 7 she got married and had children. When the kids were 8 enough, she took a part-time job 9 a cashier at a corner shop. 10 later, the same ballet company came to town. She 11 the performance and on the way out she 12 the same old ballet master who was then in his eighties. She 13 him that they had spoken before. She 14 him photos of her children and told him about the corner shop job that she was doing now. And then she asked, "There is just one thing that really 15 me for many years. 16 could you tell me that I don't have what it takes to be a great ballerina?" "Oh, I 17 looked at you when you danced. That's what I told all of them who 18 to me," he said. "But... but, that's unforgivable! You have 19 my life; I could have been a great ballet dancer!" she cried. "No, no... I don't think so. If you have what it takes, you wouldn't have paid any 20 to what I said," the old ballet master said. Well, whose fault is it anyway? | ||||
|