皮皮学，免费搜题
登录
搜题
【单选题】
平衡PN结形成过程中A.
N区的空穴向P区扩散
B.
N区的电势比P区高
C.
N区的电子向P区漂移
D.
N区的电势能比P区高
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】二极管加反偏电压的特性是( )。
A.
（ A）反向电阻小、反向电流小
B.
（ B）反向电阻小、反向电流大
C.
（ C）反向电阻大、反向电流小
D.
（ D）反向电阻大、反向电流大
【单选题】On our last journey we traveled over a lot of _________.
A.
temper
B.
terminal
C.
terror
D.
territory
【单选题】听力原文： I had spent my last day in London visiting friends, taking pictures, and doing some last-minute shopping. Among other things, I had bought some presents: a shirt for my brother, a woollen blanke...
A.
A shirt.
B.
An alarm clock.
C.
A woolen blanket.
D.
A suitcase.
【简答题】From my father I have learned a lot. And I’m very thankful to him, I remember when I was a child my father always got up very early, quickly putting on his clothes and going off to work. To arrive in ...
【单选题】On our journey to Australia last summer, our luggage was _____ at the customs. We were not allowed to carry food such as meat and vegetables.
A.
looked through
B.
gone through
C.
seen through
D.
got through
相关题目：
参考解析：
知识点：
题目纠错 0
发布
