为使沉淀损失减小,洗涤BaSO4沉淀时不用蒸馏水,而用稀H2SO4。

题型:判断题

问题:

为使沉淀损失减小,洗涤BaSO4沉淀时不用蒸馏水,而用稀H2SO4

考点:趣味知识竞赛化学趣味知识竞赛化学趣味知识竞赛题库
题型:判断题
One cold night, I was growing sick of my life in San Francisco.There I was walking home around one o clock m the morning after a   36  practice at the theatre With he opening night only a week away, I was still learning my lines by heart. I was having   37 handling my part-time job at the bank in the daytime and my acting at night at the same time. As I walked, I thought seriously about  38 both acting and San Francisco. I had  39 too much of city life.
As I walked down the  40 streets under the tall buildings, I felt very small and cold, so I began  41 both to keep warm and to keep away from any possible robbers. Very few people were still out  42 a few homeless people under blankets.
About a block from my  43 , I heard a sound behind me. I   44  quickly, half expecting to see someone with a knife or a gun. The street was empty. All I saw was a shining streetlight. Still, the noise had made me  45 so I started to run faster. Not until I reached my apartment building and unlocked the door did I   46  what the noise had been. It had been my wallet  47 to the sidewalk.
Suddenly I wasn’t cold or tired anymore. I ran out of the door and back to where I’d heard the noise. Although I searched the sidewalk   48 for 15 minutes, my wallet was   49 to be found.
Just as I was about to quit the  50 , I heard the garbage truck stop to the sidewalk next to  51 .when a voice came from the inside, “Alisa Camcho?” I thought I was dreaming. How could this man know my name? The door opened and out jumped a small blonde man with an  52 look in his eyes. “Is this  53  you’re looking for?” He asked, holding up something like a wallet.
It was already 3 a.m. by the time I got into bed. I couldn’t get much sleep, but I had got my wallet back. I also had got back some  54 of city life. I realized the city couldn’t be a bad place  55 people were willing to help each other.
小题1:
A.comfortableB.seriousC.tiresomeD.fortunate
小题2:
A.comfort ''B.desireC.painD.trouble
小题3:
A.setting upB.giving upC.holding upD.picking up
小题4:
A.expectedB.changedC.controlledD.possessed
小题5:
A.desertedB.crowdedC.blankD.narrow
小题6:
A.runningB.jumpingC.movingD.marching
小题7:
A.towardsB.exceptC.includingD.between
小题8:
A.bankB.theatreC.apartmentD.office
小题9:
A.stoodB.walkedC.turnedD.left
小题10:
A.satisfiedB.confusedC.frightenedD.annoyed
小题11:
A.turn outB.figure outC.give outD.pull out
小题12:
A.belongingB.addingC.stickingD.falling
小题13:
A.gratefullyB.anxiouslyC.skilfullyD.delightedly
小题14:
A.nowhereB.anywhereC.everywhereD.somewhere
小题15:
A.instructionB.trainingC.searchD.acting
小题16:
A.itB.himC.someoneD.me
小题17:
A.amusedB.unpleasantC.uneasyD.embarrassed
小题18:
A.whatB.whoC.whicheverD.whomever
小题19:
A.productionB.judgmentC.friendshipD.appreciation
小题20:
A.as soon asB.as long asC.as far asD.as well as
题型:判断题

某建设项目向银行一次贷款300万元人民币,年利率10%,贷款期限为5年,按复利计算5年末需偿还银行本利和()万元。

A.439.23

B.531.48

C.584.61

D.483.15

题型:判断题

预先控制又称为______

A.现场控制
B.前馈控制
C.未来控制
D.反馈控制

题型:判断题

197726型轴承大修换装工程塑料保持架后,轴承型号为197726TN,在内、外圈轴承制造标记后刻打“()“标记。

A.T

B.N

C.TK

D.TN

题型:判断题

某省人民政府为了改变在农产品加工方面无法可依的状况,切实力口强对农产品加工处理的管理,制定通过了《关于农产品加工处理应注意事项的通知》,该通知可以设定的行政处罚种类包括( )。

A.警告

B.一定数量的罚款

C.吊销加工经营许可证

D.行政拘留

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