问题
多项选择题
符合级配、塑性指数等技术要求的天然砂砾，可用做( )公路的基层。
A．一级公路
B．二级公路
C．三级公路
D．高速公路
E．四级公路
答案
参考答案：B,C,D
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符合级配、塑性指数等技术要求的天然砂砾，可用做( )公路的基层。
A．一级公路
B．二级公路
C．三级公路
D．高速公路
E．四级公路
参考答案：B,C,D
After forty-three years I have forgotten the name of the old lady, who was a 16 on the newspaper route in my hometown when I was a twelve-year-old boy. Yet it remains in my memory that she taught me a lesson in 17 that I shall never forget. On a winter afternoon, my fellows and I were throwing stones onto the slanted (倾斜的) roof of the old lady’s house to observe how the stones 18 off the roof’s edge and shot out like missiles. I found a 19 smooth rock and threw it out, but it 20 straight not for the roof but for a small window of the old lady’s house. 21 the sound of broken glass, we knew we were in trouble. We ran faster than any of our 22 flew off her roof. I was so 23 about getting caught that first night 24 I was not concerned about the old lady with the broken window in winter. 25 , a few days later I started to feel guilty for her misfortune. She 26 greeted me with a smile when I gave her the newspaper, but I was no longer able to act 27 in her presence. I 28 my mind that I would save my newspaper delivery money, and in three weeks I had seven dollars. I put the money in an envelop with a 29 explaining that I was sorry for breaking her window and hope that the seven dollars would 30 the cost for repairing it. I waited until it was 31 to avoid being seen, and put the letter I didn’t 32 into her yard. To my relief, I could have the 33 of, once again, looking straight into the old lady’s kind eyes. The next day, I handed the old lady her newspaper. She thanked me and gave me a bag of cookies she had made herself. 34 eating cookies, I felt an envelope and pulled it out of the bag. After opening it, I was shocked. Inside were the seven dollars and a short note 35 , “I’m proud of you.”
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