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【简答题】
It feels like every time my mother and I start to have a conversation, it turns into an argument. We talk about something as simple as dinner plans and suddenly, my mother will push the conversation into World War III .She'll talk about my lack of a bright future because I don't plan to be a doctor. And much to her disappointment, I don't want to do any job related to science, either. In fact, when I was pushed to say that I planned to major in English and communications, she nearly had a heart attack. "Why can't you be like my coworker's son?" she bemoans all the time. Her coworker's son received a four-year scholarship and is now earning 70,000 dollars a year as an engineer. I don't know what to answer except that I simply can't be like Mr. Perfect as I've called the unnamed coworker's son. I can't be like him. I'm the type of person who loves to help out in the community, write until the sun goes down, and most of all, wants to achieve a career because I love it, not because of fame ( 名声 ) or salary. I understand why my mother is worried about my future major. I've seen my mother struggle to raise me on her small salary and work long hours. She leaves the house around 6 : 30 am and usually comes home around 5 pm or even 6 pm. However, I want her to know that by becoming a doctor, it doesn't mean I'll be successful. I'd rather follow my dreams and create my own future.
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参考答案:
举一反三
【单选题】若所选联轴器位于减速器的输出轴与工作机之间时,应选用
A.
凸缘联轴器
B.
齿式联轴器
C.
弹性套柱销联轴器
D.
剪切销安全联轴器
【判断题】客观性是真理的本质属性。
A.
正确
B.
错误
【单选题】层流与湍流的本质区别是
A.
层流无径向流动,而湍流有径向流动
B.
湍流流速大于层流流速
C.
流道截面大的为湍流,截面小的为层流
D.
层流的雷诺数小于湍流的雷诺数
【单选题】()是真理的本质属性。
A.
相对性
B.
主观性
C.
客观性
D.
绝对性
【单选题】层流与湍流的本质区别是
A.
湍流速度大于层流速度
B.
湍流流动阻力大于层流流动阻力
C.
湍流的雷诺数大于层流的雷诺数
D.
湍流流体质点有径向脉动,而层流没有径向脉动
【单选题】层流与湍流的本质区别是
A.
湍流流速>层流流速
B.
流道截面大的为湍流,截面小的为层流
C.
层流的雷诺数<湍流的雷诺数
D.
层流无径向脉动,而湍流有径向脉动
【单选题】以下哪一本是司马迁所写的旅游地理著作?
A.
山海经
B.
货殖列传
C.
水经注
D.
徐霞客游记
【判断题】灭菌乳中牛乳的酸度标准为 12~18 o T
A.
正确
B.
错误
【简答题】材质编辑器选项卡中,RGB中的R代表( )颜色,G代表( )颜色,B代表( )颜色。
【单选题】层流与湍流的本质区别是
A.
湍流流速大于层流流速
B.
湍流的流动阻力大,层流的流动阻力小
C.
湍流的雷诺数大于层流的雷诺数
D.
层流无径向脉动而湍流有径向脉动
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