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问答题
集成运算放大器输出信号与输入信号反相时，输入信号从 端输入。
答案：
反相输入端。集成运算放大器（Op-Amp）有两个输入端，一个是反相输入端（通常标记为“-”或“V-”），另一个是同相输入...
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问答题
口语交际即口头言语交际，指的是在人与人交往的特定的语境中，听、说双方运用口头言语，传递信息、交流思想和感情的一种 。
答案：
口语交际即口头言语交际，指的是在人与人交往的特定的语境中，听、说双方运用口头言语，传递信息、交流思想和感情的一种社会活动...
问答题
Directions: Put the following phrases into concise forms (1) it is my opinion that (2) at this point in time (3) what I am trying to say is (4) red in color (5) a person by the name of (6) repeat again (7) attractive in appearance (8) rectangular in shape
Directions: Put the following phrases into concise forms (1) it is my opinion that (2) at this point in time (3) what I am trying to say is (4) red in color (5) a person by the name of (6) repeat again (7) attractive in appearance (8) rectangular in shape
答案：
(1) in my opinion (2) currently (3) in essence (4) red (5) n...
