First - ___________turn off the power. Never attempt to change a light bulb with the power still connected, Second - ___________ allow the bulb to cool, Third - ___________ remove the old bulb, Then - ___________ insert the replacement bulb, After that, - ___________switch on the power, Finally - ___________ always dispose of your old bulb .,

Sequence

طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟