问题
多项选择题
避雷带的搭接长度规定有（）。
A、扁钢之间搭接为扁钢宽度的1倍
B、扁钢之间搭接为扁钢宽度的2倍
C、圆钢之间搭接为圆钢直径的4倍
D、圆钢之间搭接为圆钢直径的6倍
E、圆钢与扁钢搭接为圆钢直径的3倍
答案
参考答案：B, D
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避雷带的搭接长度规定有（）。
A、扁钢之间搭接为扁钢宽度的1倍
B、扁钢之间搭接为扁钢宽度的2倍
C、圆钢之间搭接为圆钢直径的4倍
D、圆钢之间搭接为圆钢直径的6倍
E、圆钢与扁钢搭接为圆钢直径的3倍
参考答案：B, D
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| The train shook back and forth, its wheels making a loud noise. Outside the windows the freezing cold of winter ruled. The train was filled with cold, tired passengers. Suddenly a little boy 1 his way through the grown-up's legs and sat down by the window. He was all alone among the unfriendly grown-ups. What a brave child, I thought. His father 2 to stay by the door behind us. The train began to move slowly into a tunnel (隧道). Then something very 3 happened suddenly. The serious little boy slid (滑) down from the seat and leaned (斜靠)his hand on my knee. For a moment, I thought that he wanted to 4 me and returned to his father, so I helped him to stand up. But instead he leaned forward and held his head 5 towards mine. He wanted to say something to me, I thought.1 lowered my head to receive the 6 . Wrong again! What I received was a loud kiss on the face. The boy quietly retumed to his seat, leaned back and continued looking out of the window. I was so surprised. What just happened? A child kissed an 7 grown-up on the train. How could anybody want to kiss such a man that had so much beard (胡子)? Nervous and a little surprised, we smiled at the father. 8 he saw our questioning looks as he got ready for his stop, he offered a clue (some information). "He's so happy to be alive," the father said, "He has been very sick."Father and son 9 into the crowd moving toward the exit. Then doors closed and the train went on. On my face I could still 10 the child's kiss a kiss that has started some soul-search (深思) inside me. How many grown-ups go around kissing each other 11 the joy of being alive? How many even give much thought to the special right of 12 ? The little kisser has taught us a sweet but serious lesson-You don't let yourself die before your heart stops! | ||||
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