复习四年级科学：生锈
Authored by LEE Moe
Science
4th - 5th Grade
Used 143+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
哪项是物品生锈后的情况？
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
以下哪种情况会使铁制品生锈？
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
哪项不是防锈的重要性？
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
哪些物品放在院子里一段时间后会生锈？
报纸
铁链
吸水管
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
那种方法可以防止菜刀生锈？
把清洗干净后的菜刀浸泡在盐水中
把清洗干净后的菜刀抹干，然后涂抹一层油
把使用后的菜刀用报纸包裹着，以免菜刀接触到空气
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
以下哪些物品会生锈？
刀片、锡杯
锯子、汽车
银项链、雨鞋
木汤匙、金手镯
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
以下哪些是防锈的方法？
油漆
包裹塑料
涂润滑油
镀不锈金属
以上都是
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