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对于调频：若调制信号频率为400Hz，振幅为2.4V，调制指数为60。当调制信号频率减小为250Hz，同时振幅上升为3.2V时，调制指数变为______
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Directions: You are going to read a passage with 10 statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter.The rich world's quiet revolution: Women are gradually taking over the workplace
Directions: You are going to read a passage with 10 statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter.Women more likely than men to see nuances when making decisions
( )是复式记账的理论基础，也是编制资产负债表的理论依据。
下列经济业务,会引起所有者权益总额发生增减变化的是()
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