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【单选题】
耳蜗形似蜗牛壳,主要由中央的蜗轴和周围的骨蜗管组成。骨蜗管旋绕蜗轴的是
A.
1/2
B.
3/4
C.
1.5~1.75
D.
2~5
E.
2.5~2.75
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【判断题】应用叠加定理时,应注意电源单独作用时电路各处电压、电流的参考方向与各电源共同作用时的参考方向是否一致。
A.
正确
B.
错误
【简答题】I was packed and ready to leave for my two days’ trip. My mind had been filled with work and with so many small things to deal with. As I got into the car to leave, my thoughts turned to my children. ...
【简答题】III. 语法填空 ( 核心素养 : 语言能力 )( 建议用时 10' ) Tod and I went to a party yesterday evening 1. ( host ) by Elizabeth and Peter.Their apartment was filled 2. food and families.After chatting with the parents for...
【单选题】下面不属于汽车内部照明的灯具的是( )。
A.
顶灯
B.
行李箱灯
C.
门灯
D.
警示灯
【判断题】行李箱灯不属于车内照明灯
A.
正确
B.
错误
【简答题】下面()讲述了人们的期望是与他们的努力相关。 A公平理论 B需求理论 C期望理论 D双因素理论
【单选题】The kids was filled with ______ for the police officers when they visited the school.
A.
belief
B.
fear
C.
desire
D.
admiration
【多选题】应用叠加定理来分析计算电路时,应注意( )
A.
叠加定理只适用于线性电路
B.
各电源单独作用时,其他电源置零
C.
叠加时要注意各电流分量的参考方向
D.
叠加定理适用于电流、电压、功率
【简答题】The kids were laughing and the house was filled with _________.
【判断题】应用叠加定理时,每一个电源单独作用下,要注意电路结构不变且分析的物理量方向前后一致,才能叠加。
A.
正确
B.
错误
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