问题
单项选择题
墙体开裂质量事故产生的原因可能是设计计算有误，计算简图与实际受力不符，地基不均匀沉降，或温度应力，冻胀力的作用，也可能是施工偷工减料、材料不良等造成。由此可体现出建筑工程质量事故的（）。
A、复杂性
B、严重性
C、可变性
D、多发性
答案
参考答案：A
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墙体开裂质量事故产生的原因可能是设计计算有误，计算简图与实际受力不符，地基不均匀沉降，或温度应力，冻胀力的作用，也可能是施工偷工减料、材料不良等造成。由此可体现出建筑工程质量事故的（）。
A、复杂性
B、严重性
C、可变性
D、多发性
参考答案：A
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| It was a cold winter's night when I stopped for gas on my way home from work. I was tired and had a slight 1 . I worked in a 2 doctor's office and this was one of those days when the unexpected happened, making the schedule run 3 than usual. It seem  ed I was going to be late 4 home and my husband, being the 5 person, would be ready to pronounce me late once again. Maybe 6 I hurried, I could still make it home. I was heading inside to 7 for my gas when I noticed an older couple at the counter. I  heard themasking for 8 to the local hospital. It was the same hospital that I had just 9 a few minutes ago. The young man at the counter was trying to be 10 in explaining how to get there, with two other people making 11 . One of them was 12 trying to give them a whole different route back. It was then that I walked over to the couple and said, "Would you like to follow me to the 13 ?" A look of 14 crossed the woman's face. "I'm going right by there," I said, which wasn't a(an) 15 since I had just made up my mind to do 16 that. I got in my car and began the journey back. I was trying to watch to be sure they were right 17 me. It took only fifteen minutes to get there as rush hour traffi  c was beginning to 18 . I felt better than I had all day and my headache was nearly gone. Later, as I arrived home, my husband 19 , "So you aren't ever late any more." I said, "Sometimes it's 20 to be late." | ||||
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