等效养护龄期应根据同条件养护试件强度与在标准养护条件下()d龄期试件强度相等的原则确

题型:单项选择题

问题:

等效养护龄期应根据同条件养护试件强度与在标准养护条件下()d龄期试件强度相等的原则确定。

A.7

B.14

C.28

D.21

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题型:单项选择题

如果你生活在北宋时期,可以做到的事情是( )

①吃到占城稻 ②用煤作燃料烧水做饭 ③用黄道婆的木棉纺车纺纱 ④在四川经商时携带纸币

A.①②③④

B.①②③

C.①②④

D.②③④

题型:单项选择题

物体做匀加速直线运动,加速度为2米/秒2,那么在任意1秒内:(   )

A.物体在这一秒内通过的位移大小为2米

B.物体在这一秒内通过的位移是前一秒内通过位移的2倍

C.物体在这一秒内通过的位移和前一秒内通过的位移相差2米

D.物体在这一秒内的末速度一定等于初速度的2倍。

题型:单项选择题

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:单项选择题

在Dreamweaver中,下面关于设置层的默认属性的说法错误的是

A.可以设置使用DIVHTML标签

B.可以设置使用SPANHTML标签

C.可以设置层的大小,即宽和高

D.可以设置背景颜色而不能设置背景图像

题型:单项选择题

"实事求是"体现了()

(1)客观规律和主观能动性的统一

(2)唯物论和辩证法的统一

(3)在实践基础上,主观和客观的统一

(4)革命性和科学性的统一

A.(1)(3)

B.(2)(4)

C.(1)(2)(3)

D.(1)(2)(3)(4)

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