根据国民经济发展和科学技术进步的需要，计量基准由( )统一规_爱下问搜题

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问题单项选择题

根据国民经济发展和科学技术进步的需要，计量基准由( )统一规划、组织建立。

A．省级人民政府计量行政部门
B．国务院有关主管部门
C．国务院计量行政部门
D．省级人民政府有关主管部门

答案

参考答案：C

解析：国务院计量行政部门根据国民经济发展和科学技术进步的需要，负责统一规划，即有权组织建立计量基准。计量基准是经国家决定承认，在一个国家内作为对有关量的其他测量标准定值依据的测量标准，称为国家测量标准。在我国称为国家计量基准。处在全国量值传递的最高点或起点，也是全国量值溯源的终点。故C为正确选项。

选择题

二次函数y=(x+1)（x-3），则图象的对称轴是 [ ]

A.x=-1

B.x=-2

C .x=3

D.x=-3

完形填空

When I was eight, I wrote my first poem．My mother read and cried, "Buddy, you didn't really write this beautiful poem!"
Shyly, but        ,I said yes．She poured out her      ．"It was nothing short of talent!"
”What time will Father be home?" I asked．I could hardly wait to     my work to him．I spent quite some time       for his arrival．I wrote the poem out in my finest flourish（花体字）’drew a fancy border around it and     I placed it right on my father's plate on the dining table． My father had begun his motion-picture career as a writer．1 was sure he would be able to      my poem．
At almost 7 o'clock my father burst in．He seemed      ．He circled the dining-room table, complaining about his employees．
Suddenly he paused and glared at his plate．"What is this?" He was reaching for my poem．
¨Ben, Buddy has written his first poem!” my mother began． "And it's beautiful, absolutely amaz…”
“If you don't mind, I'd like to decide for myself．" Father said．
I      my head as he read that poem． It was only ten lines．But it seemed to take hours．Then I heard him dropping the poem back on the table． Now came the moment of     ．
“I think it's terrible," he said．
I couldn't look up． My eyes were getting      ．
“Ben, these are the first lines of poetry he's ever written," my mother was saying． "He needs       ，”
“I don't know why．" My father held his ground． "Isn't there enough      poetry in the world already? "
I couldn't      it another second． I ran from the dining room crying． Up in my room I         myself on the bed and cried the worst of the      out of me．
That may have been the end of the story, but not of its      for me． I realized how fortunate I had been． I had a mother who said, "I think it's wonderful!" and a father who drove me to hear with "I think it's awful．"
Every one of us needs that mother force, from which all     flows; and yet the mother force alone is incomplete． It needs the balance of the force that      ,"Watch． Listen． Review． Improve．"
Those       voices of my childhood ring in my ears through the years, like two opposing winds blowing me． Between the two poles of     and doubt, both in the name of love, I try to follow my true course．

B．confidently

C．instruction

D．encouragement

D．controversial

D．disappointment

A．significance

B．development

D．improvement

A．conflicting

B．confirmation

D．disapproval