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Русский Translations » 历史存档[信息] » 20160119 Одна задача в день

20160119 Одна задача в день

2016-01-19View Original

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20160119 Ежедневный вопрос: за участие — 1–3 балла, за правильный ответ — 3–5 баллов. Эффективность обычных трансформаторов очень высока; она обычно превышает ( ). А. 80% Б. 85% В. 90% Г. 95% Д
Reply #22016-01-19
D. 95%~~~~~~~~~~~~~~~~~~~
Reply #32016-01-19
Коэффициент КПД обычных трансформаторов очень высок, как правило, превышает (B). А. 80% Б. 85% В. 90% Г. 95%
Reply #42016-01-19
Коэффициент КПД обычных трансформаторов очень высок, как правило, превышает (D). А. 80% Б. 85% В. 90% Г. 95%

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Translated at 2026-07-24 03:21:37

Original: https://bbs.hcbbs.com/thread-1539666-1-1.html

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