碎煤机启动后，机械部分转动吃力或不转，电流最大而不返回，原因_爱下问搜题

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问题问答题简答题

碎煤机启动后，机械部分转动吃力或不转，电流最大而不返回，原因是？

答案

参考答案：

机内有杂物，煤堵塞碎煤室。

填空题

类风湿性关节炎最常见心脏受累的表现________。

完形填空

A Love Note to My Mom
When I was a little girl，I would often accompany you as you modeled for fashion photographers. It was years later that I finally understood what role modeling__21__ in your life. Little did I know you were_22__ every penny you earned to go to__23__ school.
I cannot thank you enough for__24__ you told me one autumn afternoon when I was nine. After finishing my homework, I wandered into the dining room where you were buried__25__ piles of law books. I was __26__.Why were you doing what I do—memorizing textbooks and studying for__27__？ When you said you were in law school, I was more puzzled. I didn’ t know Moms__28__be lawyers too. You smiled and said，“In life, you can do anything you want to do.”
As young as I was，that statement kept___29__ in my ears. I watched as you faced the___30_of completing your studies, starting companies with Dad, while still being a_31__ and a Mom of five kids. I was exhausted just watching you__32__.With your words of wisdom in my__33__mind, I suddenly felt unlimited freedom to dream. My whole world__34__.I set out to live my life filled with__35__，seeing endless possibilities for personal and professional achievements.
Your words became my motto. I__36__found myself in the unique position of being either the first (woman doctor in Maryland Rotary) __37__one of the few women (chief medical reporters) in my field. I gained strength every time I said, “Yes, I’ ll try that.”
Encouraged by your__38___， I have forged ahead (毅然前行) with my life’ s journey, less afraid to make mistakes, and__39__meeting each challenge. You did it, and now I’ m__40__ it. Sorry, got to run. So much to do, so many dreams to live.

D．disappointed

B．closed down

A．description

D．introduction

B．considering