皮皮学，免费搜题
登录
搜题
【多选题】
下面关于PN结的反向击穿特性，描述正确的是：（）
A.
PN结有齐纳击穿和雪崩击穿两种电击穿。电击穿后会产生大量的电子-空穴对，使反向击穿电流激增。
B.
高浓度的掺入杂质且耗尽层很窄的PN结反向电击穿时，一般为击穿。
C.
低浓度的掺入杂质且耗尽层比较宽的PN结反向电击穿时，一般为雪崩击穿。
D.
电击穿和热击穿均为可逆的击穿，不会损坏PN结。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【简答题】食品中的总酸度测定，一般以食品中具有代表性的酸的含量来表示。牛乳酸度以 乳酸表示 ，肉、水产品以（）表示，蔬菜类以（），苹果类、柑橘类水果分别以（）、（）表示。
查看完整题目与答案
【单选题】The broadcaster who bit the dust as a result of an ethical scandal in 2005 was ____
A.
Brian Williams
B.
Dan Rather
C.
Larry King
D.
Tom Brokaw
查看完整题目与答案
【简答题】食品中的总酸度测定,一般以食品中具有代表性的酸的含量来表示。牛乳酸度以()表示,肉、水产品以()表示,蔬菜类以(),苹果类、柑橘类水果分别以()、()表示。
查看完整题目与答案
【单选题】1 Fred Cooke of Salford turned 90 two days ago and the world has been beating a path to his door. If you haven't noticed, the backstreet boy educated at Blackpool grammar styles himself more grandly a...
A.
Cooke's obscure origins.
B.
Cooke's broadcasting style.
C.
Cooke's American citizenship.
D.
Cooke's fondness of America.
查看完整题目与答案
【多选题】农产品(食品)中总酸度的测定,一般以食品中具有代表性的酸的含量来表示,苹果类和柑橘类水果分别以 、 来表示。
A.
苹果酸
B.
酒石酸
C.
柠檬酸
D.
碳酸
查看完整题目与答案
【简答题】Listen to the auido again and fill in the blanks with the missing words. And now this. A Chinese TV ___1____is offering advice for Chinese people who choose English names. People often do that. When s...
查看完整题目与答案
【简答题】I used to be a radio broadcaster. Recently I received a 41 from the activity director at a nursing home. She told me there are a couple of former broadcasters who live in the home and they would 42 a ...
查看完整题目与答案
【简答题】The passage " The Great _______" is taken from a book written by Andrew Keen, who is a writer, an entrepreneur(企业家), a broadcaster and anyst of world digital business and cutlure.
查看完整题目与答案
【单选题】硝化细菌属于 型的微生物
A.
光能自养
B.
光能异养
C.
化能自养
D.
化能异养
查看完整题目与答案
【单选题】Fred Cooke of Salford turned 90 two days ago and the world has been beating a path to his door. If you haven't noticed, the backstreet boy educated at Blackpool grammar styles himself more grandly as ...
A.
Cooke's obscure origins
B.
Cooke's broadcasting style
C.
Cooke's American citizenship
D.
Cooke's fondness of America
查看完整题目与答案
相关题目：
【简答题】食品中的总酸度测定，一般以食品中具有代表性的酸的含量来表示。牛乳酸度以 乳酸表示 ，肉、水产品以（）表示，蔬菜类以（），苹果类、柑橘类水果分别以（）、（）表示。
查看完整题目与答案
【单选题】The broadcaster who bit the dust as a result of an ethical scandal in 2005 was ____
A.
Brian Williams
B.
Dan Rather
C.
Larry King
D.
Tom Brokaw
查看完整题目与答案
【简答题】食品中的总酸度测定,一般以食品中具有代表性的酸的含量来表示。牛乳酸度以()表示,肉、水产品以()表示,蔬菜类以(),苹果类、柑橘类水果分别以()、()表示。
查看完整题目与答案
【单选题】1 Fred Cooke of Salford turned 90 two days ago and the world has been beating a path to his door. If you haven't noticed, the backstreet boy educated at Blackpool grammar styles himself more grandly a...
A.
Cooke's obscure origins.
B.
Cooke's broadcasting style.
C.
Cooke's American citizenship.
D.
Cooke's fondness of America.
查看完整题目与答案
【多选题】农产品(食品)中总酸度的测定,一般以食品中具有代表性的酸的含量来表示,苹果类和柑橘类水果分别以 、 来表示。
A.
苹果酸
B.
酒石酸
C.
柠檬酸
D.
碳酸
查看完整题目与答案
【简答题】Listen to the auido again and fill in the blanks with the missing words. And now this. A Chinese TV ___1____is offering advice for Chinese people who choose English names. People often do that. When s...
查看完整题目与答案
【简答题】I used to be a radio broadcaster. Recently I received a 41 from the activity director at a nursing home. She told me there are a couple of former broadcasters who live in the home and they would 42 a ...
查看完整题目与答案
【简答题】The passage " The Great _______" is taken from a book written by Andrew Keen, who is a writer, an entrepreneur(企业家), a broadcaster and anyst of world digital business and cutlure.
查看完整题目与答案
【单选题】硝化细菌属于 型的微生物
A.
光能自养
B.
光能异养
C.
化能自养
D.
化能异养
查看完整题目与答案
【单选题】Fred Cooke of Salford turned 90 two days ago and the world has been beating a path to his door. If you haven't noticed, the backstreet boy educated at Blackpool grammar styles himself more grandly as ...
A.
Cooke's obscure origins
B.
Cooke's broadcasting style
C.
Cooke's American citizenship
D.
Cooke's fondness of America
查看完整题目与答案