在ab=c(c不为0)中,如果c一定,a和b成______比例;如果a一定,b和

题型:填空题

问题:

a
b
=c(c不为0)中,如果c一定,a和b成______比例;如果a一定,b和c成______比例.
考点:正比例的意义,反比例的意义
题型:填空题

I lived in _____ you call "ancient Greece" and I used to write about the Olympic Games a long time ago. [ ]

A. that

B. which

C. what

D. where

题型:填空题

某地发掘一座古墓,出土了一枚距今约5000年的玉面人,一尊内壁刻有小篆的扁足青铜方鼎。对此墓葬的年代,以下推测正确的是[ ]

A.据玉面人的年代推算,应为母系氏族时期

B.青铜器是商朝标志性器物,故应在商朝

C.商周时期出现青铜铭文,估计在商周时期

D.秦朝通行小篆,故应在秦朝

题型:填空题

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.

Peers are one of the ________agents of socialization.

A.formal

B.indirect

C.primary

D.personal

题型:填空题

下列关于中枢神经系统脱髓鞘病因叙述不正确的是()

A.缺氧性脑病由于慢性缺氧

B.Binswanger病因慢性缺血

C.脊髓亚急性联合变性因维生素B缺乏

D.热带痉挛性截瘫因逆转录病毒所致

E.进行性多灶性白质脑病是由于免疫缺陷患者细菌感染

题型:填空题

在休克监测中,哪项观察结果表示预后极差,甚至死亡率可达100%

A.中心静脉压低于0.49 kPa
B.肺动脉楔压超过4.0 kPa
C.乳酸盐浓度超过8 mmol/L
D.动脉二氧化碳分压高于5.33 kPa
E.血小板计数低于8.0×109/L

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