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毎日1問、正解しても賞品なし、楽しみが目的

2019-11-22View Original

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20. 形状が単純な静的嵌合部品の取り外しには()を使用できる。?A、引き抜き法?B、押し上げ圧力法?C、温度差法 昨日の問題の答え:A 19.エアコンプレッサーが第一段のシリンダーに送り込むガスの圧力は、大気圧の()倍である。?A、Bより低い B、等しい ?C、Bより高い

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