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【单选题】
运算放大器电路如图所示,该电路的反馈电阻为()。A.
零
B.
R2
C.
R1
D.
R3
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【单选题】Section C Passage Directions: In this section, you will hear three passages. At the end of each passage, youwill hear three or four questions. Both the passage and the questions will be spoken onlyonc...
A.
They help spread the latest technology.
B.
They greatly enrich people’s leisure life.
C.
They provide residents with the resources needed.
D.
They allow free access to digital books and videos.
【单选题】Section C Passage Directions: In this section, you will hear three passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only o...
A.
Rewarding them for eating vegetables.
B.
Exposing them to vegetables repeatedly.
C.
Improving the taste of vegetable dishes for them.
D.
Explaining the benefits of eating vegetables to them.
【单选题】《国家中长期教育改革和发展规划纲要（2010——2020年）》中指出：“百年大计，教育为本。教育是民族振兴、社会进步的基石。”下列有关教育作用的表述中，正确的有（） ①教育是文化建设的重要任务和中心环节 ②选择、传递、创造文化的特定功能 ③发展教育有利于构建“学习型社会” ④教育是发展科学技术和培养人才的基础
A.
①②④
B.
①③④
C.
①②③
D.
②③④
【简答题】Section CPassage OneQuestions 16 to 18 are based on the passage yon have just heard.16.A. They signed special contracts on that day. B. They didn’t recognize the day legally. C. They had special celeb...
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