下面是常见的电化学装置图,①③④中均为惰性电极,下列说法不正确的是( ) A.

题型:选择题

问题:

下面是常见的电化学装置图,①③④中均为惰性电极,下列说法不正确的是(  )

A.装置①中正极反应式为:2Cl--2e-=Cl2,负极反应式为:Cu2++2e-=Cu

B.装置②中铜片为阳极,若铜片和铁制品的质量相等,电解一段时间后,电路中有2mol电子转移,此时铜片和铁制品的质量差为128g

C.装置③中b极为正极,该极的电极反应方程式为O2+2H2O+4e-=4OH-

D.装置④阴极的纯水中加入NaOH的作用是:增大离子浓度,增强溶液的导电性

考点:原电池原理电解池原理
题型:选择题

26岁初产妇,妊娠37周,未进行产前检查,在乡医院已临产30小时,患者因烦躁不安,大汗淋漓,下腹剧痛而转来我院。

应该进行的处理是()

A.若胎儿存活行剖宫产

B.若胎儿死亡经 * * 行穿颅术

C.等待自然分娩

D.给予镇静剂观察病情进展

E.立即行剖宫产术

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苹果的质量比香蕉的质量多
1
8
,苹果和香蕉的质量比是(  )
A.9:8B.8:9C.8:7
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Englishmen speak British English and Americans speak American English. A student is learning to speak British English. He often asks himself, “Can Americans understand me when I speak British English?” Learners often ask “What’s the difference between British English and American English?”Certainly there are some differences between British and American English. The Englishmen say “Have you a pen?” While Americans say “Do you have a pen?” The pronunciation is sometimes different. Americans often sound “r” in words like “bird” and “hurt”. The British speakers don’t sound the “r” in these words. There are differences in spelling. For example, “colour” and “neighbour” are British while “color” and “neighbor” are American. These differences in grammar, pronunciation and spelling are not important, however. For the most part, British and American English are the same language. When Englishmen and Americans are talking with each other, they don’t need an interpreter(翻译). Maybe some day they need, but not now.

小题1:Between British and American English, _______.

A.the greatest difference is in spelling

B.there are differences in many ways

C.people can’t understand each other

D.students don’t know the difference小题2:When a student is asking himself “Can Americans understand me when I speak British English?” it shows that_______.

A.he wants to learn American English

B.he doesn’t like British English

C.he hasn’t spoken to any American so far

D.he is going to spend more time on American English小题3:43. The differences between British and American English are not important because______

A.everyone knows the differences   

B.people talk to each other very often

C.Englishmen and Americans get along well

D.British English and American English are the same language小题4:“Have you a pen” and “Do you have a pen?” show a difference in______

A.grammar

B.spelling

C.pronunciation

D.listening小题5:At the end of the passage the writer wants to tell us _______.

A.British and American English will be two different languages some day

B.Englishmen and Americans will never need an interpreter while talking

C.there will be no more differences between British and American English

D.the differences between British English and American English will grow larger

题型:选择题

业事业单位和其他生产经营者建设项目未依法进行环境影响评价,被责令停止建设,拒不执行的,尚不构成犯罪的,除依照有关法律法规规定予以处罚外,由县级以上人民政府环境保护主管部门或者其他有关部门将案件移送公安机关,对其(),处十日以上十五日以下拘留;情节较轻的,处五日以上十日以下拘留。

A、主管人员

B、直接负责的主管人员

C、直接负责的主管人员和其他直接责任人员

D、主管人员和相关人员

题型:选择题

TAI(Tracking area identity)由MCC、MNC和()组成。

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