设备故障诊断技术的发展历程为感性阶段、()、()、人工智能和网络化阶段。
参考答案:量化阶段 ;诊断阶段
根据文章内容,判断下列句子正误,正确的写“A”,错误的写“B”。
A young man goes to the city and buys himself a pair of socks. When he comes back home, he goes to his room and tries them on. He finds they are in different colours. One is blue but the other is green. He goes into the kitchen. His mother and his sister are cooking dinner. He says to them, “The new socks are in different colours. I should make them in the same colour. Would you like to do this for me?” His mother and sister are busy and they don’t say anything. When his mother finishes cooking, she goes to her son’s room and makes the green sock in blue. She comes back without saying a word to her son. After supper, his sister goes to her brother’s room and makes one blue sock in green without saying anything.
小题1:The young man buys a pair of shoes in the city.
小题2:The socks are in different colours, one is green and the other is blue.
小题3:The young man wants to make the socks in the same colour.
小题4:Mother makes the green sock in blue and tells his son what she did.
小题5:Finally, the socks are in the same colour.
A.副线圈输出交流电的频率为10Hz
B.交流电压表的示数为20V
C.电阻R上消耗的电功率为2kW
D.原线圈中电流的最大值为100A