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【多选题】
两多台变压器并列运行时,必须满足如下哪些条件:A.
并列变压器的额定一、二次电压必须对应相等
B.
并列变压器的阻抗电压必须相等
C.
并列变压器的联结组别必须相同
D.
并列变压器的铁心必须相同
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举一反三
【单选题】What is the main idea of Paragraph 9?
A.
Some children's literature, such as poetry, does not follow the pattern.
B.
Poems don't describe a sequence of events.
C.
Not all children's literature follows the pattern, but many do because the pattern reflects what readers expect.
D.
Children read more fiction than poetry because fiction is more interesting.
【简答题】Practice: read paragraph 3 and paragraph 9 of Text B and find out the single words. Paragraph 3: As an undergraduate student I worked for two solid years as a day care provider earning minimum wage. T...
【简答题】记忆包括三个系统：瞬时记忆、_____记忆和______记忆。
【简答题】记忆包括哪几个基本环节?
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