问题
多项选择题
电力系统中长时间的过负荷运行将引起（）等后果。
A.设备过热
B.加速绝缘老化
C.轻者降低设备使用寿命
D.严重时绝缘击穿引发短路
答案
参考答案：A, B, C, D
搜题请搜索小程序“爱下问搜题”
电力系统中长时间的过负荷运行将引起（）等后果。
A.设备过热
B.加速绝缘老化
C.轻者降低设备使用寿命
D.严重时绝缘击穿引发短路
参考答案：A, B, C, D
| 阅读理解 | ||||
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| 1. You can call________to join the basketball club. | ||||
| A. 697-5821 B. 286-9332 C. 569-8838 D. 407-7998 | ||||
| 2. When can you learn to swim? ________. | ||||
| A. From 4:00 to 6:00 on Sunday afternoons B. From 9:00 to 11:00 on Saturday mornings C. From 10:00 to11:00 on Sunday mornings D. From 3:00 to 4:00 on Saturday afternoons | ||||
| 3. If(如果)you want to learn to play the guitar, you need to pay(付费) ________an hour. | ||||
| A. 40 dollars B. 50 dollars C. 60 dollars D. 80 dollars | ||||
| 4. From the four ads(广告),we know that________is true(正确). | ||||
| A. David is good at playing basketball B. Mike Green is a good player C. We can play interesting games in the Fun Swimming Club D. We can have many friends in the Cool Guitar Club. |
