向一定量的K2CO3溶液中缓慢滴加稀盐酸,并不断搅拌。随着盐酸的加入,溶液中各离

题型:选择题

问题:

向一定量的K2CO3溶液中缓慢滴加稀盐酸,并不断搅拌。随着盐酸的加入,溶液中各离子数目也相应地发生变化。溶液中各离子数目与图中四条曲线的对应关系完全正确的是

[ ]

b
 c
d
A.
Cl-
K+
CO32-
HCO3-
B.
K
CO32-
Cl-
HCO3-
C.
K
CO32-
HCO3-
Cl-
D.
K+ 
HCO3-
Cl-
CO32-
考点:离子反应
题型:选择题

有这样一副对联:“有志者,事竟成,破釜沉舟,百二秦关终属楚;苦心人,天不负,卧薪尝胆,三千越甲可吞吴。”与这副对联有关的人物是[ ]

A.项羽、勾践                    

B.秦始皇、刘邦      

C.秦二世、项羽                  

D.项羽、刘邦

题型:选择题

The first and most important agents of socialization are the people who care for infants. In the earliest months, messages from nurturers constitute the child’’s basic understanding of the world around it. This is the infant’’s first introduction to the language that shapes perception and elicits emotion.Another powerful source of information and socialization is the friendship of peers. Peers are equals that one can deal with on the same level as oneself, whereas parents are superiors. The heavy emotional overlay of family relationships makes some kinds of learning difficult.Much formal socialization is placed in the hands of professionals. Teachers from kindergarten on are specifically designated agents of socialization. Ideally, a teacher is one who has both knowledge and the skills to present it. During the course of teaching their subjects, classroom instructors provide role models and attempt to convey the excitement of learning itself.In earlier times, parents, friends and teachers would comprise the list of primary childhood socializers. Children’’s books, comics and magazines might also have been mentioned as sources of information on norms and role models. Today one must add three powerful indirect or non-personal socialization agents: radio, movies and television. Many people learn about politics, form a vision of well-being, and develop attitudes towards others from what they see on the screen and hear through the speakers.

The child’s basic understanding of the world around it is formed________.

A.at kindergarten

B.in the earliest months

C.by classroom instructors

D.through interaction with parents

题型:选择题

以下不属于卫生经济学研究内容的是()。

A.卫生资源的最优使用

B.卫生资源的开发、筹集和合理分配

C.医疗机构的经济效益最大化

D.卫生资源的使用目的

E.卫生工作与人民健康相关的经济活动

题型:选择题

与其他一般企业相比,银行的突出特点是()。

A.高负债经营

B.低负债经营

C.自有资本较多

D.自有资本较少

E.银行面临着较小的资金流动性风险

题型:选择题

夫妻关系,又称之为婚姻关系或配偶关系。它具体包括下列几方面的含义()。

A.婚姻是男女两性的结合

B.婚姻是双方具有夫妻身份的结合

C.婚姻是为当时社会制度所确认的男女两性的结合

D.婚姻是阶级社会的产物

更多题库