以下是关于中标项目分包的表述，请问：哪一项是错误的 A．中标人分包须经招标人同意 B

把锌片和铜片用导线相连后插入稀硫酸溶液中构成原电池．对该电池的描述合理的是

①溶液中硫酸的物质的量浓度保持不变

②Cu极上有气泡产生，发生还原反应

③Cu为负极，Zn为正极

④原电池在工作时电子由负极通过溶液流向正极

⑤该装置将化学能转变为电能（　　）

A．②⑤

B．③⑤

C．①②

D．④⑤

同一客户持5份（含）以上不同户名的存折、银行卡或存单办理取款业务的，应（）。

A.无论单份单笔取款金额大小，原则上应同时提供代理人和被代理人有效身份证件，至少应提供代理人有效身份证件

B.逐笔登记代理人的姓名、联系方式以及有效身份证件种类、号码

C.留存一份代理人有效身份证件复印件作最后一笔取款记账凭证附件

D.单笔取款金额达到规定限额以上的，应根据有关规定进行客户身份识别

The computer keyboard helped kill shorthand---a system of rapid handwriting, and now it's threatening to finish off handwriting as a whole. When handwritten essays were introduced on the SAT exams for the class of 2011, just 15% of the most 1.5 million students wrote their answers in cursive (草写字母）.The rest? Block letters.

And those college hopefuls are just the first edge of a wave of US students who no longer get much handwriting instructions in the primary grades, frequently 10 minutes a day or less. As a result, more and more students struggle to read and write cursive.

At Keene Mill Elementary School in Springfield, all their poems and stories are typed. Children in Fairfax County schools are taught keyboarding beginning in kindergarten. Older students who never mastered handwriting say it doesn't affect their grades.

There are those who say the culture is at a crossing, turning from the written word to the typed one. If handwriting becomes a lost form of communication, does it matter?

It was at University of Virginia that researchers recently discovered a previously unknown poem by Robert, written in his unique script. Handwritten documents are more valuable to researchers, historians say, because their authenticity (真实性）can be confirmed. Students also find them more fascinating.

The loss of handwriting also may be a cognitive (认知的）opportunity missed. Several academic studies have found that good handwriting skills at a young age can help children express their thoughts better-a lifelong benefit.

It doesn't take much to teach better handwriting skills. At some schools in Prince George's County, elementary school students use a program called Handwriting Without Tears for 15 minutes a day. They learn the correct formation of manuscript letters through second grade, and cursive letters in third grade.

There are always going to be some kids who struggle with handwriting because of their particular neurological (神经系统的)wiring, learning issues or poor motor skills. Educators often point to this factor in support of keyboarding.

小题1:What is the author concerned about after 2011 SAT exams?

A．Keyboarding.

B．Shorthand

C．Handwriting.

D．Block letters.小题2:A poem by Robert mentioned in the passage is used to _________.

A．prove how valuable handwriting is

B．explain what a famous poet he is

C．show how unique his poem is

D．stress how fascinating the documents are小题3:The example of Handwriting Without Tears helps to argue that_________.

A．the schools are responsible for the loss of handwriting

B．the loss of handwriting is a cognitive opportunity missed

C．it doesn't take much to teach better handwriting skills

D．the culture is turning from the written word to the typed one小题4: According to the author, when is a perfect time to learn handwriting?

A．Kindergarten.

B．Primary school.

C．High school.

D．College.小题5:What is the author’s attitude towards this debate?

A．Devotion.

B．Encouragement.

C．critical.

D．Objective.

以MDEA为主溶剂的混合醇胺溶液只有MDEA-MEA溶液。

研究表明，学习成功的学生往往对学习抱积极态度，而学习遭受挫折的学生对学习抱消极态度。能对这种态度作出合理解释的是

A．认知失调理论

B．社会学习理论

C．效果律

D．准备律