问题
填空题
液压牵引双滚筒采煤机有截割部、（）、电动机及（）和辅助装置四大部分组成。
答案
参考答案：牵引部；电气设备
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液压牵引双滚筒采煤机有截割部、（）、电动机及（）和辅助装置四大部分组成。
参考答案：牵引部；电气设备
The young boy and his father sat quietly watching the snow fall on a snowy Saturday afternoon. “Dad, my friend told me that every snowflake is . But they look all the same to me. How can we tell?” the child asked. Dad felt it was his to give a more satisfying answer. “Son, snowflakes are like people. We are each in a very special way. We can test it right now,” he said. The child stood up, put out his hands, and as snowflakes landed on his gloves. “These snowflakes are all different on my gloves, but those in the yard look the same. Together they are even more_ and striking. Then if people are like snowflakes, why don't they well?” “Choice,”Dad said. "Their choices them what they are.” “ choice is a bad thing?” the boy asked. “Oh, no. Only when we choose the things.” “How do we tell right from wrong?" the child asked. Dad was given the chance to build upon the foundation of his son's . He reached down and began to with the snow. He the snow into two sides, three large snowballs on one side and several smaller ones on the other. “Which side did the right thing?” he asked the boy. The child looked at both sides but answer. Then Dad placed the three larger snowballs on top of each other. “It’ s a snowman! The side made me snowman!” the boy replied with Yes, all these people came together and recognized how special each of them was, so they joined in a(n) to build up mankind,” Dad said. The child then stood up and an arm full of the smaller snowballs. One by one he began to throw them at the other small piles of snow. He said,”This is what happens when people can't work together. They have a(n) .” Dad was shocked. He stood up, lifted the boy and him tightly, whispering to him, “I hope that your world will learn to work and live together. I hope you will make the right and learn to build the best snowman ever.”
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