问题
单项选择题
下列选项中，( )不是一级基坑的开挖要求。
A．重要工程或支护结构做主体结构的一部分
B．开挖深度大于7m
C．与临近建筑物，重要设施的距离在开挖深度以内的基坑
D．基坑范围内有历史文物、近代优秀建筑、重要管线等需严加保护的基坑
答案
参考答案：B
解析：一级基坑的开挖深度应大于10m。
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下列选项中，( )不是一级基坑的开挖要求。
A．重要工程或支护结构做主体结构的一部分
B．开挖深度大于7m
C．与临近建筑物，重要设施的距离在开挖深度以内的基坑
D．基坑范围内有历史文物、近代优秀建筑、重要管线等需严加保护的基坑
参考答案：B
解析：一级基坑的开挖深度应大于10m。
April 27 is a special day in .It's called Take Our Daughters to Work Day. It was brought to Britain in 1994 from America. On that day thousands of girls take a day school and go with one of their parents to their work place. By doing this, it can girls more about the society where they live. Now the girls can have a closer look at their parents are doing. This may help them in the future to choose a . Marry experienced a day ofwork at her mother's office. This helped her her mother's work better. She said that this made her feel more confident about her future. Schools and many companies the activity, too. Some schools make the day a necessary part of school life. Experts think that girls with more self-confidence are more likely to be than girls with low confidence． parents can set good examples to their children both at work and at home, then they will do better than others. Take Our Daughters to Work Day is surely a step in the right direction.
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