化学能与电能练习题以下现象与电化学无关的是（ ）A.黄铜（铜锌合金）制作的铜锣不易产生铜绿B.生铁（铁炭合金）比软铁心（几乎是纯铁）易生锈C.铁质器件配有铜制配件,在接触处易生铁锈D.银质奖牌久置后表面会变黑

相关推荐

• 化学能与电能练习题以下现象与电化学无关的是（ ）A.黄铜（铜锌合金）制作的铜锣不易产生铜绿B.生铁（铁炭合金）比软铁心（几乎是纯铁）易生锈C.铁质器件配有铜制配件,在接触处易生铁锈D.银质奖牌久置后表面会变黑
• 英语翻译Every year between one and two hundred thousand people get hurt and several thousand peopledie on the roads in Great Britain.These people get hurt or die in road accidents.There are rules to make the roads safe,but people do not always obey the rules.They are careless.If everybody obey the rules,the roads will be much safer.How can we make the roads safer?Remember this rule .in Great Britain,traffic keep to the left.Cars,buses and bikes must all k
• 英语翻译The best way of learning a laungage is by using it.The best way of learning English is to lk in English as much as possibl.There may be times when people will speak too quickly and you cannot understand them and you may get your words mixed up in answering them and they might not understand you.Don't be unhappy if peope seem to laughat your mistakes.If you keep your sens of humor,you can always have a good laungh ove the mistakes you make.It's muc