室外架空线路最小允许截面,挡距在40m以内:( )。A.铜线4mm2,铝线6mm2

题型:单项选择题

问题:

室外架空线路最小允许截面,挡距在40m以内:( )。

A.铜线4mm2,铝线6mm2

B.铜线6mm2,铝线10mm2

C.铜线10mm2,铝线16mm2

D.铜线16mm2,铝线25mm2

考点:质量员电气质量员电气质量员
题型:单项选择题
请认真阅读下面短文,并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。
注意: 每个空格只填1个单词。
Being yourself refers to not trying to copy anyone or do what isn’t your nature. Then what does it take to be yourself?First, you must know yourself inside. Looking inside is the key to knowing your positive aspects. If you yourself aren’t clear about who “YOU” are and what your personal analysis is, you’ll come to a dead end. It’s essential to be comfortable with yourself and think positively.
Once you’ve done a self analysis, it’s time to focus on this material world. Think about what you basically want to do and achieve in life. Make it clear to yourself what you like and do not like and what your passion (激情) is in your life. If you dislike something, don’t try to like it just because your best friend is fond of it. Focusing on your passion and interests will keep you positive.
Honesty is the best policy for being yourself. Be honest and express what you feel but make sure that you do not hurt others. Wherever you can speak out freely without holding anything back, it is best to be honest. That adds character to your personality and is essential for being yourself in a relationship as well.
Be confident but don’t be overconfident. You have to believe in what you do and what you want. If you hesitate, getting up and giving it your best shot with full confidence is what matters. Moreover, you should have faith in yourself. If you know who you are, it would not matter much what the whole world thinks of you. But that won’t mean that you have unrealistic expectations from yourself.
Understanding how to be yourself does not at all mean that you focus only on your inner self. I mean that your external (外在的) appearance also matters a lot. If you are poorly dressed or wearing your dad’s old T-shirt, no one would come and talk to you. So one needs to dress well and look good. Unless people come and talk to you, they would not know what kind of person you are. In a word, you need to have a combination of inner beauty and a smart appearance.
Title: How to Be yourself
Passage outline
Supporting details
Know yourself inside
●Look inside to know your positive aspects.
●Be clear about who “YOU” are and know your personal analysis.
●Be comfortable with yourself and think (1)      
Focus on this material world
●Think about your (2)      goal in life.
●Be clear about your likes, dislikes and (3)      .
●Avoid (4)      yourself to like something you actually dislike.
Be (5)       .
●Express your feeling without (6)      other people.
●Try to speak out freely and honestly.
Be confident but don’t be overconfident.
●Believe in what you do and what you want.
●Have(7)      in yourself and don’t care about others’ opinions about you.
●Have(8)      expectations from yourself.
Don’t(9)    your external appearance.
●Dress well and look good.
●(10)      your inner beauty with a smart appearance.
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下图表示某种细菌细胞中的一个反应程序。在这个程序中,一种氨基酸在酶的作用下产生另外的氨基酸。

1~6代表不同的氨基酸(对生命都是必需的),V~Z代表不同的酶。细菌的原始种只要培养基中有氨基酸1就能生长,而细菌的变异种只有在培养基中有氨基酸1、2、5时才能生长。该种细菌的变异种中不存在的酶是()

A.V、Z

B.W、Y

C.Y、Z

D.V、W

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知当x→0时,

-1与cosx-1是等价无穷小,则常数a=______.

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农业经济管理是有合理()农业生产力和正确调节农业生产关系两方面的职能。

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在水利工程施工中,高边坡作业时应()清理坡顶和坡面松碴、危石、不稳定物体。

A.自下而上

B.自上而下

C.自左向右

D.自右向左

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