7812的额定输出电流是()。 A.1A B.2A C.3A D.5A

题型:单项选择题

问题:

7812的额定输出电流是()。

A.1A

B.2A

C.3A

D.5A

考点:一级结构工程师基础知识电工电子技术电工电子技术题库
题型:单项选择题

She wants _____.

A.three dozen of these eggs

B.three dozens of these eggs

C.three dozen of this eggs

D.three dozen of these egg.

题型:单项选择题

一段路程为S, 一辆汽车在通过前2S/3的速度为V1, 通过后S/3的速度V2, 则汽车在全程中的平均速度为(       )

题型:单项选择题

锅炉初点火时,采用对称投入油枪,定期倒换或多油枪小油量等方法是使炉膛热负荷比较均匀的有效措施。

题型:单项选择题

对于国家财政,应做到“生财有道,聚财有度,用财有效”。“生财”之根本在于()

A.调整分配政策

B.强化税收管理

C.增发国家债券

D.发展社会经济

题型:单项选择题

Just how does a person arrive at an idea of the kind of person that he is He develops this (1) of self through a gradual and complicated (2) which continues throughout life. The notion is an (3) that one establishes only with the help of others. (4) the elementary knowledge that one is short or tall is a comparative judgment that we cannot make (5) we have the opportunity to (6) ourselves with others. One’s idea of qualities which are harder to (7) is even more dependent upon other people’s ideas.

Whether one is intelligent, or stupid; attractive, or ugly; these and many other ideas of the self are (8) from the reactions of people with whom we (9) This process of (10) the nature of the self from the reaction of others has been labeled the "Looking-glass Self" by Cooley, who carefully analyzed this psychological (11) of self-discovery.

Just as the picture in the mirror gives an image of the physical self, (12) the perception of the reactions of others gives an image of the social self. We know, (13) , that we are good at certain things and not at others. This (14) came to us from the reactions of other persons, first our parents and then other individuals (15) in life. It should be remembered that, as other people’s reactions could be (16) and understood in more than one way, the looking-glass self with which the individual (17) may easily differ from the image others have actually formed of his (18) Clearly, it is our perception of the responses of others and not their (19) responses that (20) our self-image, and these perceptions are often not accurate.

13()

A. in brief

B. in effect

C. after all

D. for example

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