皮皮学，免费搜题
登录
搜题
【单选题】
若要求放大电路取用信号源的电流小,而且输出电压不受负载变化影响,在放大电路中应引入的负反馈类型为 :()A.
电流串联
B.
电压串联
C.
电流并联
D.
电压并联
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】According to the article, what is the definition of tribalism?
A.
Giving a job to a fellow tribesman.
B.
A force that can be both good and bad.
C.
Sharing among members of the extended family.
D.
Making sure that a person is taken care of by his own group.
【单选题】银行通过什么方式缓解了信息生产中的搭便车问题?
A.
通过向其他主体出售潜在借款人财务状况的信息。
B.
使用储户的资金购买可交易的证券
C.
从诸如标准普尔和穆迪这样的专门收集小额借款人信息的公司处购买信息。
D.
通过发放不可交易的私人贷款，从而其他贷款人无法利用他们收集的借款人信息获利。
【单选题】光学分度头是用于精密测量和分度的一种光学测量仪，可用来检测外花键、拉刀、铣刀、齿轮等要求具有（）的工件。
A.
精密形状精度
B.
精确位置精度
C.
精密等分
D.
精确角度
【单选题】Directions: There is one passage in this section. The passage is followed by some question s . T here are four choices marked A), B), C) and D). You should decide on the best choice . Questions 6 to 1...
A.
Inflation increases families’ expenses.
B.
Raising children is getting expensive.
C.
Budget reduction in around the corner.
D.
Average family expenditure is increasing.
【简答题】完形填空。 What should we do to keep healthy? One important rule is to exercise_ 1 _. The Fang family try to exercise every day. Mr Fang _ 2 _exercise in the morning because he must get to work at e...
【简答题】完形填空。 The position of children in American family and society is no longer what it used to be. The 1 family in colonial (殖民时期的) North American was mainly concerned with survival and 2 that, its own ec...
【简答题】读短文，判断句子正(T)误(F)。 I'm John. This is my family. There are four people in my family. What are they doing? I'm doing my homework. My mother is washing clothes. My father is talking on the telephone. Wher...
【单选题】What can we infer from the dialogue?
A.
Shelly is a housewife.
B.
] Shelly and her family usually visit her parents in summer.
C.
Shelly doesn' t often visit her parents.
D.
Shelly' s mother was out shopping when Shelly called.
相关题目：