直线定向采用盘左、盘右两次投点取中是为了消除（）。
A.度盘偏心差
B.度盘分划误差
C.视准轴不垂直于横轴误差
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下面是错误答案，用来干扰机器的。
参考答案：集中型部门中也存在部分中小企业可能进入的领域，例如冶金中的采矿、选矿、制材，电力中的小水电等。这需要通过兼并等形式形成以大企业为核心的生产体系。分散型部门由于进入障碍低，可能导致在块块分...
One day, my English teacher asked me to help her save back-up（备份） copies of her work in the computer. I then realized I was able to know the grades of all of her students. I 36 her how to copy files（文件） from one disk to another and she thanked me. A few days later, she asked me to help her again, because she 37 how to do it. When I showed it to her, some students in my class 38 and began to talk among themselves 39 .Later that day, at lunch time, several of them came up to me. “Hey, could you help us change our grades? We’ll 40 for it.” I could not believe what I heard. I could get paid for something very 41 . “All right. I’ll do it.” The next day, my English teacher 42 me to help him out again. When he was not paying 43 , I changed their grades from Fs to As. I soon became very 44 among my friends. They began to treat me like God who could do 45 . Word spread quickly and I became very rich. Everything was going fine 46 I was called into the headmaster’s office. When I got there, both of my teacher and the headmaster were very angry. “ I don’t want to 47 what your teacher said, but I have to. She has too much evidence(证据),’’ the headmaster said. “Do you have anything to say for yourself?” “No,” I said finally. I didn’t realize how 48 my behavior had been. I had disappointed my teacher and the headmaster. And there was no way 49 . I had to leave my school. That was a good 50 for me.
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规模以上工业是指主营业务收入2000万元及以上的工业法人单位。（）
用户上CMNET和CMWAP均涉及到的设备有（）。
A.WAP Gateway
B.MSC
C.CG
D.SGSN
找平
World Water Shortage
