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22.自來水用聚乙烯塑膠管,用什麼符號表示?(A)PVC(B)PE(C)HIB(D)HIW
問題詳情
22.自來水用聚乙烯塑膠管,用什麼符號表示?
(A)PVC
(B)PE
(C)HIB
(D)HIW
參考答案
答案:B
難度:適中0.606897
統計:A(51),B(88),C(3),D(3),E(0)
上一篇 :
15.切管器切割鋼管後,欲清除所產生之內毛邊,宜選用下列何種工具最適當?(A)管牙刀(B)管絞刀(C)圓銼刀(D)車刀
下一篇 :
7.凸緣與管接合時,凸緣面與管體應成垂直,測量凸緣面與管體是否垂直,使用的量具爲:(A)凸緣角尺(B)角尺(C)直角規(D)止型規
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