⑶此電路的共模拒斥比 CMRR（Common-mode rejection ratio）=？（5 分）

⑴英翻中：請將下列英文短文翻譯成順暢的中文（30 分） California’s official nickname is “The Golden State.” In 1848, gold was discovered, starting the famous Gold Rush. In San Francisco, there is the monumental Golden Gate Bridge. South from San Francisco is Los Angeles, the second largest city in the U.S. It’s a thriving metropolis and a center for international trade. Further down the coastline near the border of Mexico is San Diego. Known for its mild and sunny weather, tourists come here to enjoy miles of beaches. California’s cities have much to offer. There is a lot of natural beauty to be found here as well, such as Yosemite National Park and Death Valley. California has so much to offer visitors that it is a destination to visit time and again. Whether you go looking for movie stars in Hollywood or to watch the sunset on the ocean, the Golden State has it all.

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⑶此電路的共模拒斥比 CMRR（Common-mode rejection ratio）=？（5 分）

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