对于卤族元素的叙述中不正确的是( ) A.沸点HF>HCl>HBr>HI B.还

题型:选择题

问题:

对于卤族元素的叙述中不正确的是(  )

A.沸点HF>HCl>HBr>HI

B.还原性HI>HBr>HCl>HF

C.热稳定性HF>HCl>HBr>HI

D.氧化性F2>Cl2>Br2>I2

考点:元素周期表
题型:选择题
Do you have the ability to live cheaply? Now here’s a true story of an American girl,Sarah.
 21  Sarah left university,she began to live in New York City on her own.She   22  a job in a publishing house,but the salary(薪水)was   23  $30,000 a year.Her parents thought her life would be hard,but Sarah  24  live on her salary and still saved $5,000 in a year.How was that  25  in one of the most expensive cities in the world?
Cheap living  26  starts with keeping the big cost small.For most people,that  27 housing.So Sarah chose to share a flat with three other friends.Her next biggest cost was  28 .When she ate out,she went to cheap restaurants. 29  she bought a $9.99 whole chicken at a local restaurant.She then   30 the chicken bones(骨头)home and made soup out of them.Nowadays young people often  31  a lot of money on entertainment(娱乐).But Sarah said,“I enjoy walking  32  in New York City.I love going to museums and parks.”  Did Sarah feel poor  33  cheap living? Not really.She even managed to take two trips,one to the Netherlands, 34 to Portland.
“Don’t think of saving money as something  35 .It’s a kind of game,”said Sarah.
小题1:
A.UntilB.Because C.After D.Unless
小题2:
A.foundB.triedC.asked forD.looked for
小题3:A.more than     B.less than       C shorter than                      D.higher than
小题4:
A.canB.mayC.could D.might
小题5:
A.difficultB.possibleC.usefulD.different
小题6:
A.alreadyB.sometimesC.hardlyD.always
小题7:
A.helpsB.becomes C.makes D.means
小题8:
A.foodB.restC.studying D.playing
小题9:
A.SoonB.FinallyC.OnceD.Again
小题10:
A.preparedB.took C.caughtD.picked
小题11:
A.payB.lend C.spendD.save
小题12:
A.alongB.upC.downD.around
小题13:
A.byB.upC.atD.between
小题14:
A.anotherB.the otherC.others D.the others
小题15:
A.hardB.interestingC.niceD.great
题型:选择题

关于水的离子积常数,下列说法正确的是

A.水中,c(H+)·c(OH-)=1×10-14

B.纯水中,25℃时,c(H+)·c(OH-)=1×10-14

C.25℃时,任何稀溶液中,c(H+)·c(OH-)=1×10-14

D.改变溶液的酸碱度,Kw随之改变

题型:选择题

明治政府推行的文明开化政策的核心是    [ ]

A.废除身份制度实行形式上的平等 

B.提倡武士道精神,实现民族振兴  

C.用基督教来改造日本宗教    

D.用西方资本主义文化来改造日本封建文化

题型:选择题

下列说法错误的是()

A、比例带越大,放大倍数越大

B、微分时间越长,作用越弱

C、微分时间越长,作用越强

D、积分时间越长,作用越弱

E、积分时间越长,作用越强

题型:选择题

在侵权诉讼开始时,由于未搜索到有利证据材料,被告没有在答辩期内提出宣告专利权无效的请求.后在法院开庭审判前,被告向专利复审委员会提出了宣告专利权无效的请求.据此,审查侵权诉讼的人民法院:()

A.应当中止审判程序,待专利复审委员会作出的宣告专利权无效或者维持专利权有效的决定生效后再恢复审判程序.

B.可以不中止审判程序,继续开庭审理.

C.可以在专利权人提供担保的前提下不中止审判程序.

D.可以在被告提供担保的前提下中止审判程序.

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