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【简答题】
三极管放大区的特征是当基极电流变化时,集电极电流与基极电流呈正比变化,三极管具有()作用。
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【简答题】找出下列句子中引导时间状语从句的连词。 1 When she came in, I was eating. 2 We always play as we walk. 3 It will be a long time before they come back. 4 After we had finished the work, we went home. 5 She didn’t g...
【简答题】Most of us don't think too much about world hunger. When we are hungry, we can always find something to eat ---- usually something good. But in many parts of the world ---- even in some rich countries...
【简答题】We always go to bed ______ on Saturday
night.A. late B. lately C. later D. latest
【简答题】1 I don’t like coffee, so I _________ drink it. 2 He _________ goes running in the morning. He never misses a day. 3 I _________ have a hot drink before I go to bed. It’s a habit with me. 4 ‘Do you __...
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