砹(At)是卤素中核电荷数最大的元素,下列有关砹或砹的化合物性质推测,错误的是

题型:选择题

问题:

砹(At)是卤素中核电荷数最大的元素,下列有关砹或砹的化合物性质推测,错误的是

A.砹为有色固体

B.HAt很稳定

C.AgAt不溶于水

D.砹单质熔沸点比碘单质熔沸点高

考点:构成物质的粒子—分子、原子、离子元素周期律
题型:选择题

Li Ming fell              the mud. [ ]

A. on                            

B. at                            

C. in 

题型:选择题

单肺移植的最佳适应证是()。

A.肺化脓症

B.肺源性心脏病

C.原发性肺动脉高压

D.慢性阻塞性肺疾病

E.特发性肺纤维化

题型:选择题
Read the following text and choose the most suitable heading from the list A-F for each paragraph. There is one extra heading which you do not need.
A.Necessity for developing adult education
B.Early days of adult education
C.Ways of receiving adult education
D.Growth of adult education
E. Institutions of adult education
F. Functions of adult education
 

 

 
76.

Voluntary learning in organized courses by mature men and women is called adult education. Such education is offered to make people able to enlarge and interpret their experience as adults. Adults may want to study something which they missed in earlier schooling, get new skills or job training, find out about new technological developments, seek better self—understanding, or develop new talents and skills.

 

 
77.  

This kind of education may be in the form of self-study with proper guidance through the use of libraries, correspondence courses, or broadcasting. It may also be acquired collectively in schools and colleges, study groups, workshops, clubs, and professional associations.

 

 
78.

Modern adult education for large numbers of people started in the 18th and 19th centuries with the rise of the Industrial Revolution. Great economic and social changes were taking place: people were moving from rural areas to cities; new types of work were being created in an expanding factory system. These and other factors produced a need for further education and re-education of adults.

 

 
79.

The earliest programs of organized adult education arose in Great Britain in the 1790s, with the founding of an adult school in Nottingham and a mechanics’ institute in Glasgow. The earliest adult education institution in the United States was founded by Benjamin Franklin and some friends in Philadelphia in 1727.

 

 
80.

People recognize that continued learning is necessary for most forms of employment today. For example, parts of the adult population in many countries find it necessary to take part in retraining programs at work or even to learn completely new jobs. Adult education programs are springing up constantly to meet these and other needs.
题型:选择题

头顶颞部出血时可压迫

A.上颌动脉
B.面动脉
C.颞浅动脉
D.颈总动脉
E.唇动脉

题型:选择题

某期现金预算中假定出现了正值的现金收支差额,且超过额定的期末现金余额时,单纯从财务预算调剂现金余缺的角度看,该期不宜采用的措施是()。

A.偿还部分借款利息

B.偿还部分借款本金

C.抛售短期有价证券

D.购入短期有价证券

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