问题
单项选择题
无筋扩展基础不适用的情况为( )。
A．基底压力较小的6层建筑物
B．地基承载力较高的6层和6层以下建筑
C．地基土软弱的建筑物
D．5层和5层以下的民用建筑
答案
参考答案：C
解析：地基土软弱，则基础的变形量和不均匀变形量也就较大，基础中产生很大的拉应力。而无筋扩展基础为刚性材料，无法抵抗较大的拉应力。
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无筋扩展基础不适用的情况为( )。
A．基底压力较小的6层建筑物
B．地基承载力较高的6层和6层以下建筑
C．地基土软弱的建筑物
D．5层和5层以下的民用建筑
参考答案：C
解析：地基土软弱，则基础的变形量和不均匀变形量也就较大，基础中产生很大的拉应力。而无筋扩展基础为刚性材料，无法抵抗较大的拉应力。
| 阅读理解。 | |
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| 1. All the information about the writer must be included except his/her _____. | |
| A. school name B. e-mail address C. telephone number | |
| 2. What is required (要求) for the articles wanted according to the passage? | |
| A. They must be fully created by the writers themselves. B. They must be typed in single space and on both sides. C. They must be provided with photos and descriptions. | |
| 3. According to the passage, you can send your articles _____. | |
| A. within 3 weeks B. all summer C. during the whole term | |
| 4. How many ways can you find in the passage to contact School Life? | |
| A. 1. B. 2. C. 3. | |
| 5. Who do you think will write articles for School Life? | |
| A. Students who are interested in writing. B. Teachers who love writing and taking photos. C. Readers who had a happy time in their childhood. |