3. 造成造水機真空度下降時之原因，下列何者錯誤？ (A) 冷卻水溫度太高 (B) 冷卻水量不足 (C) 冷卻水管髒汙 (D) 造水能力增加

8. One kind of tools which are in common use for daily maintenance works on the ship is a simple tool designed to insert and tighten, or to loosen and remove, screws. The tool comprises an approximately cylindrical handle to be held by the worker, and an axial shaft fixed to the handle, the tip of which is shaped to fit a particular type of screw. The handle and shaft allow the tool to apply torque. What tool is above description? (A) Hammer (B) Screwdriver (C) Pliers (D) Drill

3. 造成造水機真空度下降時之原因，下列何者錯誤？
(A) 冷卻水溫度太高
(B) 冷卻水量不足
(C) 冷卻水管髒汙
(D) 造水能力增加

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