问题 选择题

下图甲和乙是双液原电池装置。由图可判断下列说法错误的是

[ ]

A.甲图电池反应的离子方程式为Cd(s)+Co2+(aq)=Co(s)+Cd2+(aq)

B.2Ag(s)+Cd2+(aq)=Cd(s)+2Ag+(aq)反应能够发生

C.盐桥的作用是形成闭合回路,并使两边溶液保持电中性

D.乙图当有1 mol 电子通过外电路时,正极有108 g Ag析出

答案

答案:B

完形填空
Working parents feel that they are not giving their children enough care. They think that their children feel 1 and 2  to spend more time with them.
Scientists in some colleges have found that working parents believed that they knew 3  their children, but  4 had ever asked their children what they thought. So scientists interviewed (采访) over 1,000 children of working mothers or fathers to 5  what they wanted. They asked the children 6 they wanted their parents to stay  7  and some 8 questions.After they collected the answers, it was   9  that only 10% of the children in their study said that they wanted more time with their parents. _10_, the children who were interviewed said they wanted their parents to give more   11 to them. They said that their parents were as   12  as a bee. When they were asked about what they 13   most, a large number of the children said that they wanted to feel important and   14 .
So parents should know what their children really want and how to get along  15  with them.
小题1:
A.tiredB.afraidC.unhappyD.worried
小题2:
A.thinkB.letC.askD.want
小题3:
A.of  B.at    C.aboutD.over
小题4:
A.every oneB.someoneC.anyoneD.no one
小题5:
A.try outB.find outC.take outD.put out
小题6:
A.whetherB.whyC.whenD.how
小题7:
A.behindB.at homeC.awayD.up
小题8:
A.otherB.othersC.the otherD.the others
小题9:
A.surprisingB.importantC.necessaryD.useful
小题10:
A.ButB.AlsoC.HoweverD.too
小题11:
A.foodB.careC.moneyD.practice
小题12:
A.smallB.youngC.lazyD.busy
小题13:
A.talkedB.learnedC.neededD.studied
小题14:
A.lovedB.hatedC.complainedD.troubled
小题15:
A.goodB.niceC.fineD.well
单项选择题