题目内容

将10 W、10 Ω和25 W、1Ω的两个电阻串联起来,所允许流过的最大电流为______A。

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The Backbone of North America refers to the ____.

Appalachian Mountains
B. Rocky Mountains
Cascade Mountains
D. Nevada Mountains

Which of the following city has the lowest crime rate?

A. Chicago
B. New York
C. Philadelphia
Detroit

The City of Big Shoulders refers to _____.

A. New York
B. Los Angeles
C. Houston
D. Chicago

Which of the following architecture are not located in NY?

A. Statue of Liberty
B. Golden Gate
C. Empire Building
D. Brooklyn Bridge

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