题目内容
二极管正偏时，电阻较小，可等效开关断开。
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稳压二极管工作在反向击穿区域。
光电二极管是一种把电能转变为光能的半导体器件。
从下列方框中找出合适的词补全空格1.The old (1)_______ order was gone forever.2.The food here is (2)_________ first-rate.3.Most of the students of our class take Spanish as an (3)_________ course.4.He transferred to another college after his (4)_________ year.5.We hired a new (5)__________.6.Can't find your (6)___________ session?7.She (7)_________ in History at Stanford.8.They claimed to have shot down one (8)_________ missile.9.(9)____________ of Mathematics
请写出下列序数词的英文，并按顺序填入空格中第二第八第九第十二第二十三第四十五第九十九第一百零一
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