在KJ3-4线圈的电路中，通过一个（）第七组接点接入负极性电源。

[单选题]     When I was young, I spent my summer vacations on my grandparents' farm. The summer that I graduated from college, I  56   my grandparents once again. When I arrived,I discovered that there was a family  57  in progress.     Grandpa's dog and hunting partner, Rusty, had taken on a very bad   58  in his old age. He had begun  59   into the chicken coop (鸡笼) and eating eggs. In the eyes of the local farmers,  60 dogs started stealing eggs, there was no  61  to cure them. They knew there was only one thing to be done  62   such a dog-you had to shoot it and the sooner the  63  .     Rusty and Grandpa were old friends. Grandpa certainly didn't  64   to shoot Rusty,but he knew it needed to be done. The 66egg money" was Grandma's private income, so you can imagine  65  she felt about the problem. 66  the inexperienced confidence of youth, I told Grandpa that I thought I could"cure"the egg-stealing dog. I wanted to at least have a  67  to save Rusty's life, and save Grandpa from the sadness of  68  Rusty.      The next morning, I broke open six fiesh eggs and put them in Rusty's bowl   69 at the door to the chicken coop. Rusty came 70  and noticed the eggs. He quickly  71   the eggs and happily walked off for his nap (打盹). The following morning I did the  72  thing.I put the eggs a few feet away from the chicken coop, toward the back door of the farmhouse  73   Grandma usually fed Rusty. The next day I again moved the bowl closer to the house, and added some dog food to the eggs. Every day I moved the bowl closer to the back door, mixing more dog food and   74   eggs. By the time the bowl reached the door, it was all dog food and no eggs. Rusty had again become   75 to looking for his food at the back door of the house, and never again went into the chicken coop.72.A.specific    B.same       C.kind       D.different

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[单选题]学生票票价按相应客票和附加票票价的（）计算。

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[单选题]如果控制面数据没有完整性保护，MAC-I（）

[判断题]在Windows中，用户不可以一次性使桌面上的所有窗口都最小化。（　　）

[多选题]支气管肺炎的镜下病变有（）

[单选题]某个体工商户为小规模纳税人，2017年5月取得含税销售货物收入82400元，已知增值税起征点为月销售额30000元，则该企业应缴纳增值税（  ）元。

[单选题]下列哪种情况不适宜阴道给药（）

[问答题]为什么产品需求曲线是向右下方倾斜的？供给曲线是向右上方倾斜的？

[单选题]6502电气集中KJ3-4线圈的电路中，通过（）第7组接点接入负极性电源。

[单选题]6502电气集中KJ3-4线圈的电路中，通过（）第7组接点接入负极性电源。

[单选题]在KJ3-4线圈的电路中，通过一个（）第七组接点接入负极性电源。

[单选题]在KJ3-4线圈的电路中，通过一个（）第七组接点接入负极性电源。

[单选题]在KJ3-4线圈的电路中，通过一个（）第七组接点接入负极性电源。

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[判断题]DBQ电路中I次侧分别与电路的三个线圈组（电流互感器）并联。

[单选题]带铁心的线圈在交流电路中，铁芯对线圈的性能影响为：使线圈（）增大。

[填空题]3~4YJ触头控制的是（）线圈电路。

[填空题]1~2YJ触头控制的是（）线圈电路。