问题
单项选择题
牺牲阳极埋设处和两组阳极之间的（）应设测试桩。
A.管道上
B.电缆上
C.土壤中
D.输油站
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
牺牲阳极埋设处和两组阳极之间的（）应设测试桩。
A.管道上
B.电缆上
C.土壤中
D.输油站
参考答案：A
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 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 how to do it. When I showed it to her, some students in my class noticed and began to talk among themselves .Later that day, at lunch time, several of them came up to me. "Hey, could you help us change our grades? We'll for it." I could not believe what I heard. I could get paid for something very . "All right. I'll do it." The next day, my English teacher asked me to help him out again. When he was not paying attention, I changed their grades from Fs to As. I soon became very popular among my friends. They began to treat me like God who could do . Word spread quickly and I became very rich. Everything was going fine 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 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 my behavior had been. I had disappointed my teacher and the headmaster. And there was no way . I had to leave my school. That was a good lesson for me.
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