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【简答题】
克拉波电路只适宜于用作 或者频率变换较小的变频振荡器,西勒电路可用作 。
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】在对 OSI 参考模型中第 n 层与 n+1 层关系的描述中正确的是
A.
第 n+1 层为第 n 层提供服务
B.
第 n+1 层为从第 n 层接收的报文添加一个报头
C.
n 层报头用以协调相邻节点 n 层之间的协议动作
D.
第 n 层与第 n+1 层相互之间没有影响
【判断题】地方标准是指在国家的某个地区通过并公开发布的标准。对没有国家标准和行业标准而又需要在省、自治区、直辖市范围内统一的工业产品的安全和卫生要求,可以制定地方标准。
A.
正确
B.
错误
【单选题】在对 OSI 参考模型中第 n 层与 n+1 层关系的描述中正确的是
A.
第n 层为第 n+1 层提供服务
B.
第 n+1 层为从第 n 层接收的报文添加一个报头
C.
n 层报头用以协调相邻节点 n 层之间的协议动作
D.
第 n 层与第 n+1 层相互之间没有影响
【单选题】听力原文：M: How did you like our American History class yesterday? W: Well, I did enjoy it, but I didn't exactly buy everything Barnum said either. M: You mean his view that the early framers of the const...
A.
She loved it.
B.
She disagreed with too much of it to enjoy.
C.
She thought it was just so so.
D.
She liked the class but disagreed with the Professor.
【单选题】听力原文：M: How did you like our American History class yesterday? W: Well I did enjoy it, but I didn't exactly buy everything Barnum said either. M: You mean his view that the early framers of the consti...
A.
She loved it.
B.
She disagreed with too much of it to enjoy.
C.
She thought it was just so.
D.
She liked the class but disagreed with the Professor.
【单选题】地方标准是指对没有国家标准和行业标准而又需要在省、自治区、直辖市范围内统一（ ）的安全、卫生要求所制定的标准。
A.
工业产品
B.
农业产品
C.
出口产品
D.
认证产品
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