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P. 18
แบบฝึกหัดท้ายบทที่ 1
ค าชี้แจง ให้นักศึกษาเติมค าในช่องว่างให้สมบูรณ์
1. ให้นักศึกษาบอกความหมายของ “การบ ารุงรักษา” มาพอสังเขป
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2. ให้นักศึกษาบอก “จุดมุ่งหมายของการบ ารุงรักษา” มาพอสังเขป
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3. ให้นักศึกษาอธิบาย “ประเภทของการบ ารุงรักษา” มาพอสังเขป
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