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【简答题】
Have you ever complained (抱怨) why life is so tiring? Does the sky sometimes dark to you? Are your lessons sometimes not successful? Well, friends, cheer up and all the time. If you see the world with your warm heart, you will find the whole world smiling to you.. Not long ago, a friend of mine decided to read a lot of books to get knowledge. So he went to the library and happily with several books. But after a few days, he felt bored. The idea of finishing all of the books seemed , because it was for him to sit quietly to read a whole book. He didn’t know what to do. Then one day, he suddenly thought of “Why not make reading fun?” It gave him again. Reading is a journey of spirit(心灵之旅). Every time when we a book, we are actually talking the writer. Since then, he tried to spend more time reading books, so he could feel all of the writer’s happiness and sadness. And reading is boring, but kind of interesting. Attitude can make a great . Someone once said, “ the situation is bad, people are free to choose their attitude.” So, don’t complain about the situation. It helps . For example, one day the weather is fine. You and your friends want to go for a picnic. Just before you go, it  suddenly starts to rain. Maybe you would feel very and start to complain about the weather. But dear friends, why  don’t you sit down and listen to the free concert that the nature brings you? And with the timely rain, crops(庄稼) in the fields will grow better and farmers will have a good harvest (收成). Attitude decides everything. With an optimistic (乐观的) attitude, life is easy and happy. Let’s smile to we meet and the whole world will smile to us. 小题1: A.seem B.taste C.sound D.smell 小题2: A.cry B.smile C.complain D.shout 小题3: A.more B.less C.many D.a lot 小题4: A.sang B.jumped C.returned D.danced 小题5: A.easy B.unnecessary C.possible D.impossible 小题6: A.hard B.interesting C.happy D.easy 小题7: A.money B.hope C.time D.knowledge 小题8: A.buy B.borrow C.read D.write 小题9: A.on B.about C.of D.with 小题10: A.of course B.no longer C.as usual D.in fact 小题11: A.decision B.difference C.discussion D.problem 小题12: A.Even though B.Because C.As if D.So 小题13: A.nothing B.anything C.everything D.something 小题14: A.comfortable B.nervous C.sad D.happy 小题15: A.wherever B.whenever C.however D.whatever
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【判断题】图像形式的提交按钮与普通的提交按钮在功能上基本相同,只是它用图像替代了默认的按钮,外观上更加美观。
A.
正确
B.
错误
【单选题】伺服电动机属于()。
A.
直流电机
B.
交流电机
C.
控制电机
D.
其它电机
【判断题】αi系列伺服电动机属于经济型电动机,βi系列伺服电动机属于高性能电动机
A.
正确
B.
错误
【简答题】伺服电动机、步进电动机等都属于 。
【单选题】胰高血糖素发挥作用时,其第二信使是
A.
cAMP
B.
cGMP
C.
cCMP
D.
AMP
【单选题】不属于闭环伺服系统使用的执行元件是(    )。
A.
直流伺服电动机    
B.
交流伺服电动机
C.
步进电动机    
D.
电液脉冲马达
【单选题】伺服电动机属于( )
A.
驱动用电动机
B.
绕线型异步电动机
C.
控制用电动机
D.
鼠笼型异步电动机
【单选题】胰高血糖素发挥作用时,其第二信使是
A.
cAMP
B.
cGMP
C.
cCMP
D.
AMP
E.
GMP
【判断题】伺服系统中的直流或交流伺服电动机属于驱动部分
A.
正确
B.
错误
【判断题】伺服电动机属于同步电机。
A.
正确
B.
错误
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