问题
单项选择题
二极管的最大反向电压是指整流管（）时，俩端出现的最大反向电压。
A.导电
B.不导电
C.导通
D.不导通
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
二极管的最大反向电压是指整流管（）时，俩端出现的最大反向电压。
A.导电
B.不导电
C.导通
D.不导通
参考答案：B
| 选择合适的单词补全句子。 | |
The best time to go to Beijing is fall. It's 1._________ and cool. You can go to the Great Wall. When is the best time to go to Harbin? Of course2.__________. It's windy and cold. But you can 3._______ there. 4._________ is the best season to go to Sanya. It's sunny and hot. You can 5. _______ in the sea. What about Hangzhou? 6.________ is the best time to go there.The sky is 7.________. The leaves are 8._____. It's beautiful. You can 9._____________, too. |