1. **选项A**:负反馈通过将部分输出信号反送回输入端,确实会降低电路的总增益。这是其核心缺点之一,因为反馈会抵消部分输入信号,导致增益减少。 2. **选项B**:负反馈可能抑制噪声,但无法直接提高信噪比(S-N比)。若反馈网络引入额外噪声,甚至可能降低信噪比,故选项B错误。 3. **选项C**:带宽扩展是负反馈...
21 Which process is not a result of negative feedback? A A A decrease in the surrounding temperature leads to a decrease in respiration rate B A decrease in the surrounding temperature leads to a decrease in sweating. C. A decrease in the surrounding temperature leads to a decrease in bloo...
What kind of product do you think is the biggest demand now? What are the opportunity costs of not including the cost of negative externalities in prices? What is the opportunity cost of imposing trade restriction? What factors must a firm consider when deciding whether to raise or lower its...
LitwinJournal of the National Cancer InstituteRogatko A, Litwin S. 1996. Phase II studies: which is worse, false positive or false negative? J. Natl. Cancer Inst., Letter 88:461.Rogatko A, Litwin S. Phase II studies: which is worse, false positive or false negative? (letter). J ...
Like ‘Wix Enterprise,’ Shopify Plus is pitched as an enterprise-grade solution that offers advanced features involving security, APIs, task automation and fulfilment. The Shopify Plus platform The fees for Shopify Plus are negotiable, but the product is very expensive — you can expect to pay ...
If the calculated net present value (NPV) is negative, which of the following must be CORRECT. The discount rate used is: A. less than the internal rate of return (IRR). B. equal to the internal rate of return (IRR). C. greater than the internal rate of return (IRR). 相关知识点...
Consider a real negative feedback control system, which statement is correct? () A. The model in the feedforward path must be precise. B. The model in the feedforward path can be less precise. C. The model in the feedback path must be precise. D. The model in the feedback path ...
Anger is a natural reaction(反应) which comes out when we feel that we have not been treated fairly. The good side of this negative emotion(负面情绪)is that it has helped us to shape and improve our manners. However it will become a problem if we can’t control it. For example, some...
A more accurate measure of the false-negative rate of papanicolaou smear screening is obtained by determining the false-negative rate of the rescreening pr... BACKGROUNDThe false-negative rate (FNR), or fraction, of Papanicolaou (Pap) smear screening has been proposed as a useful quality assess...
a曲折的剧情 正在翻译,请等待... [translate] aimaginative. irrelevant. ambitious imaginative. irrelevant. ambitious [translate] aAparil Fools’day comes from Aparil傻瓜’天来自 [translate] aWhich of the following is an example of a false negative 哪些以下是错误阴性的例子 [translate] ...