有第一段第四句 Water is used in car engines to keep them cool while they run 可知,水被用在汽车发动机上,在它们发动的时候保持低温。故B项符合题意。 antifreeze 意为“抗冻剂”,是加在水里防治水结冰的;alcohol 意为“酒精”,也是抗冻剂一种;ethylene glycol 也是抗冻剂一种。均不符合题意。 故正确...
Antifreeze is a liquid (液体) that is added to water to keep it from freezing. When water freezes and turns to ice, it expands (膨胀). The force of water expanding is so great that it will break the hardest metal. Water is used in car engines (发动机) to keep them cool while they...
根据Water is used in car engines to keep them cool while they run, and if this water is allowed to freeze in winter it can break the iron block of the engine. That is why antifreeze is necessary.描述,可知。故选B。 根据Water freezes at 0ºC; the usual kind of antifreeze will not ...
We use antifreeze in order to A. keep alcohol in water B. stop ice from becoming water C. make the freezing point of water lower D. raise the freezing point of water( A )55. The text is written to A. tell us what antifreeze is B. make people buy antifreeze C. tell us that ...
【题目】Antifreeze is a liquid(液体) that is added to water to keep it from freezing.When water freezes and turns to ice,it expands(膨胀).The force of water expanding is so great that it will break the hardest metal.Water is used in car engines(发动机) to keep them cool while they ...
1.Antifreeze is a liquid(液体) that is added to water to keep it from freezing.When water freezes and turns to ice,it expands(膨胀).The force of water expanding is so great that it will break the hardest metal.Water is used in car engines(发动机) to keep them cool while they run,an...
Antifreeze is a liquid(液体) that is added to water to keep it from freezing.When water freezes and turns to ice,it expands(膨胀).The force of water expanding is so great that it will break the hardest metal.Water is used in car e
当水结成冰的时候，它会膨胀。水膨胀的力很大，可以把最硬的金属涨破。这就是为什么在冬天汽车的引擎中加防冻液的原因。小题1:细节理解题。根据文章第一段三，四两行可知。小题2:细节理解题。根据文章第一段倒数第三行，四行可知。小题3:细节理解题。根据文章第一段倒数一二两行可知。小题4:细节...
A. tell us what antifreeze isB. make people buy antifreezeC. tell us that cars need antifreezeD. show us how to protect car engines 免费查看参考答案及解析 题目: Substances, whether in the solid, liquid, or gaseous state, possess __ which are independent of the force of cohesion. A....
the designed stretchable spring supercapacitor can show 92% capacitance retention even at 500% high strain after 5000 tensile cycles. The antifreeze supercapacitor exhibits excellent cold resistance and ductility as well as significant capacitive and mechanical properties due to the high electrical stability...