皮皮学，免费搜题
登录
搜题
【单选题】
对于回路电流法中的电流源,下列叙述中,( )是错误的。
A.
对于有伴电流源，可利用电源等效变换转换为电压源后，再列写回路电流方程。
B.
对于无伴电流源，可选择合适的回路，使只有一个回路电流流过该无伴电流源，则该回路电流为已知，可少列一个方程。
C.
对于无伴电流源，可添加该无伴电流源两端电压这一新的未知量，只需多列一个无伴电流源电流与回路电流之间关系的辅助方程即可。
D.
电流源两端电压通常为零。
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
【单选题】听力原文： Indian police have found a large cache of plastic explosives in Bombay, the type used. in last month's serial bombings that killed more than 300 people Police say they seized nearly 2,000 kilogr...
A.
a large amount of money
B.
a large amount of plastic explosives
C.
similar explosives
D.
the bodies of many victims
查看完整题目与答案
【单选题】Peter Judd was sorry for ______.
A.
his silly action to kill himself
B.
his 10th failure to hit the target
C.
his sound of shot to astonish the officer
D.
that he killed himself behind the wall
查看完整题目与答案
【单选题】听力原文： Indian police have found a large casket of plastic explosives in Bombay, the type used in last month's serial bombings that killed more than 300 people. Police say they seized nearly 2000 kilogr...
A.
a large amount of money.
B.
a large plastic bomb.
C.
similar explosives.
D.
the bodies of many victims.
查看完整题目与答案
【单选题】Peter was born _____ the morning of November 13 th .
A.
on
B.
in
C.
at
D.
of
查看完整题目与答案
【简答题】阅读理解 Peter: Look, it's Tom's family photo. Jim: Is this his sister? Peter: I don't know. Tom, is this your sister? Tom: Yes, it's my older sister. Her name is Linda. Jim: How about this woman?  Is she...
查看完整题目与答案
【单选题】The police ______ the evidence last time, but they did not.
A.
must have found out
B.
should have found out
C.
must find out
D.
could find out
查看完整题目与答案
【简答题】句型转换。 1. My birthday is October 11th . (对画线部分提问) ______ ______ your birthday? 2. Peter is 18 this year. (对画线部分提问) ______ ______ is Peter this year? 3. Tom likes baseball. (否定句) Tom ______ ______ baseb...
查看完整题目与答案
【单选题】听力原文： The Sri Lankan police are reported to have said that they' ve found evidence of a plot to set up a military regime if President Chandrika Kumaratunga had been assassinated in an attempt at her l...
A.
satisfied businessmen, opposition figures
B.
satisfied businessmen and military officers as well as the Tamil separatist rebels
C.
wealthy businessmen
D.
dissatisfied businessmen, opposition figures and military officers as well as the Tamil separatist rebels
查看完整题目与答案
【简答题】听短文，回答问题。 1. The two rooms on _____ floor. [     ] A. The 2nd B. The 4th C. The 5th 2. Peter doesn't have to pay for _____. [     ] A. Breakfast B. Lunch C. Supper 3. Peter can arrive at this hotel __...
查看完整题目与答案
【单选题】Police have still found no clues as to the whereabouts of the missing child.
A.
reasons
B.
signs
C.
answers
D.
marks
查看完整题目与答案
相关题目：
【单选题】听力原文： Indian police have found a large cache of plastic explosives in Bombay, the type used. in last month's serial bombings that killed more than 300 people Police say they seized nearly 2,000 kilogr...
A.
a large amount of money
B.
a large amount of plastic explosives
C.
similar explosives
D.
the bodies of many victims
查看完整题目与答案
【单选题】Peter Judd was sorry for ______.
A.
his silly action to kill himself
B.
his 10th failure to hit the target
C.
his sound of shot to astonish the officer
D.
that he killed himself behind the wall
查看完整题目与答案
【单选题】听力原文： Indian police have found a large casket of plastic explosives in Bombay, the type used in last month's serial bombings that killed more than 300 people. Police say they seized nearly 2000 kilogr...
A.
a large amount of money.
B.
a large plastic bomb.
C.
similar explosives.
D.
the bodies of many victims.
查看完整题目与答案
【单选题】Peter was born _____ the morning of November 13 th .
A.
on
B.
in
C.
at
D.
of
查看完整题目与答案
【简答题】阅读理解 Peter: Look, it's Tom's family photo. Jim: Is this his sister? Peter: I don't know. Tom, is this your sister? Tom: Yes, it's my older sister. Her name is Linda. Jim: How about this woman?  Is she...
查看完整题目与答案
【单选题】The police ______ the evidence last time, but they did not.
A.
must have found out
B.
should have found out
C.
must find out
D.
could find out
查看完整题目与答案
【简答题】句型转换。 1. My birthday is October 11th . (对画线部分提问) ______ ______ your birthday? 2. Peter is 18 this year. (对画线部分提问) ______ ______ is Peter this year? 3. Tom likes baseball. (否定句) Tom ______ ______ baseb...
查看完整题目与答案
【单选题】听力原文： The Sri Lankan police are reported to have said that they' ve found evidence of a plot to set up a military regime if President Chandrika Kumaratunga had been assassinated in an attempt at her l...
A.
satisfied businessmen, opposition figures
B.
satisfied businessmen and military officers as well as the Tamil separatist rebels
C.
wealthy businessmen
D.
dissatisfied businessmen, opposition figures and military officers as well as the Tamil separatist rebels
查看完整题目与答案
【简答题】听短文，回答问题。 1. The two rooms on _____ floor. [     ] A. The 2nd B. The 4th C. The 5th 2. Peter doesn't have to pay for _____. [     ] A. Breakfast B. Lunch C. Supper 3. Peter can arrive at this hotel __...
查看完整题目与答案
【单选题】Police have still found no clues as to the whereabouts of the missing child.
A.
reasons
B.
signs
C.
answers
D.
marks
查看完整题目与答案