皮皮学，免费搜题
登录
搜题
【单选题】
在放大电路中，测得BJT各引脚的电流分别如图所示，以下判断正确的是（ ）。【图片】A.
为 NPN型，①为基极、②为发射极、③集电极
B.
为 NPN型，①为发射极、②为基极、③集电极
C.
为 PNP型，①为基极、②为发射极、③集电极
D.
为 PNP型，①为基极、②集电极、③为发射极
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】According to the author, if a person is found guilty of a crime, ______.
A.
society is to be held responsible
B.
modern civilization is responsible for it
C.
the criminal himself should bear the blame
D.
the standards of living should be improved
【多选题】当前细胞领域研究包括哪三大基本问题?
A.
细胞内的基因组如何在时间、空间上有序表达？
B.
基因产物（结构蛋白和核酸、脂质、多糖及其复合物）如何装配成细胞结构体系和各种细胞器？
C.
活性因子和信号分子如何调控细胞生命活动过程？
D.
细胞是如何起源与演化的？
【单选题】What does the author mean by saying "Finally I found a way out in my leisure time?"
A.
She found leisure time could help relieve her stess and maintian a well-balanced life.
B.
She found a way to enjoy herself in her leisure time.
C.
She got to know how to spend her leisure time.
D.
She came to understand what "a well-balanced life" means.
【单选题】Why does the author mention the meteorite ALH84001 in paragraph 6?
A.
Because it was found in Antarctica about fifty years ago
B.
Because it was evidence of a recent impact on Mars
C.
Because scientists thought that it contained evidence of life on Mars
D.
Because the meteorite probably came from Mars a long time ago
【单选题】According to the author, if a person is found guilty of a crime, ______.
A.
society is to be held responsibilities
B.
modern civilization is responsible for it
C.
the criminal himself should bear the blame
D.
the standards of living should be improved
【单选题】When asking 'do I need my umbrella today?', the author found that Siri______.
A.
responded quickly
B.
ceased working suddenly
C.
provided irrelevant information
D.
misunderstood the question
【单选题】What does the author mean by saying “Finally I found a way out in my leisure time?”
A.
She found leisure time could help relieve her stress and maintain a well-balanced life.
B.
She found a way to enjoy herself in her leisure time.
C.
She got to know how to spend her leisure time.
D.
She came to understand what “a well-balanced life” means.
【单选题】In the last paragraph the author says, 'I have found the answer to my question. ' What is the question?
A.
Is Japanese education better than American education?
B.
Why do Japanese businessmen send their children to Japanese-staffed schools?
C.
Why was my son not taught enough geographic knowledge?
D.
Is American education really worse than education in other countries?
相关题目：
参考解析：
知识点：
题目纠错 0
发布
