皮皮学，免费搜题
登录
搜题
【简答题】
如图(a)所示电路，已知U s =2V，R 1 =R 2 =2Ω，非线性电阻的伏安特性为i=f(u)=2u 2 (u＞0)。
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】Made of concrete, the gravity dam is_________m long,_________m tall above the sea level.
A.
2,309.5, 175
B.
2,350, 185
C.
2,309.5, 185
D.
2,335, 175
【简答题】思考:如果在通电螺线管中插入铁芯,铁芯会被 ,也会产生磁场,于是通电螺线管周围既有 产生的磁场,又有 产生的磁场,因而磁场大大增强了。
【简答题】Language as activity refers not to the ability in our minds, but to the actions that we do with language at a given moment. In our everyday lives we do not use the whole of language. Rather, we use ...
【单选题】Task 3 (51-55) Directions: This taskis the same as Task1.The 5 questions or unfinished statements are numbered 51through 55. Do you know howto deal with money troubles for the future/ here is some use...
A.
you will not hurry to buy things you wish to have
B.
you may not go shopping for things you don’t need
C.
you will only go shopping for things you may need
D.
you may not hurry to buy things not exactly needed
【单选题】With the antenna of the SART l.5 meters above the sea level, and on the search height of 3000 ft, the detection range of SAR airplane will up to
A.
5 n nules
B.
10 nmiles
C.
40 n miles
D.
2 nmiles
【单选题】Which of the following is known as the roof of the world with a height of more than 5,000 feet above the sea level?
A.
Loess Plateau
B.
Inner Mongolia Plateau
C.
Qingzang Plateau
D.
Yungui Plateau
【简答题】Qinghai Lake, which is the largest inland body of salt water in China, lies 3198 meters above the sea level.
相关题目：