皮皮学，免费搜题
登录
搜题
【简答题】
由理想组成的电路如下图所示，已知输出电压u o 与三个输入电压u 1 ，u 2 和u 3 的关系满足u o =au 1 +7u 2 +bu 3 ，试求系数a，b和R F 的阻值。
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
【简答题】恒速干燥阶段的湿物料表面温度是什么温度？为什么？
【单选题】Choose the best paraphrasing for each of the following sentences: The war acted merely as a catalytic agent in this breakdown of the Victorian social structure.
A.
The war speeded up the collapse of the Victorian social structure.
B.
This breakdown of the Victotian social structure resulted in the war.
C.
The war was just an element in this breakdown of the Victorian social structure.
D.
This breakdown of the Victorian social strucuture actually stopped the war.
【单选题】Demain, s'il ________ beau, nous irions à la campagne.
A.
fait
B.
fera
C.
faisait
D.
ferait
【简答题】The war acted merely as a catalytic agent in this breakdown of the Victorian soci a l structure...(Para.3)
【单选题】Choose the rhetorical device used in the following sentence: The war acted merely as a catalytic agent in this breakdown of the Victorian social structure,
A.
metaphor
B.
simile
C.
antithesis
D.
hyperbole
【简答题】在恒速干燥阶段,湿物料的表面温度( )干燥介质湿空气的绝热饱和温度。在降速干燥阶段,湿物料表面的水分汽化速率( )物料内部水分向表面迁移的速率。
相关题目：