阅读理解。
I live in a small town near Chengdu. You can't see it on the map of China, because it is too small. There
are not many tall buildings in our town. The best building is our school. There are six hundred students and
thirty -six teachers in our school. In the front of the school, there is a playground. I often play soccer with
my classmates on it. There is a small garden behind our school. We plant (种植) beautiful flowers in the garden. Next to the garden, there is an orange orchard (果园). You can hear birds singing in the trees. There is a river
not far from our school. In summer, we usually go swimming with our teachers in it. We study Chinese,
English, math and other subjects at school. The teachers are very nice. We love our school.
1. Why can't you see Our town on the map of China?
A. Because it is too small.
B. Because the map is small.
C. Because it is near Chengdu.
D. Because there are not many tall buildings in it.
2. How many teachers are there in our school?
A. 6.
B. 60.
C. 36.
D. We don't know.
3. What's in the front of the school?
A. A river.
B. A garden.
C. An orange orchard.
D. A playground.
4. What do we do in the garden?
A. Play soccer.
B. Plant flowers.
C. Sing.
D. Go swimming.
5. Which is right according to (根据) the passage?
A. The best building in our town is our school.
B. Our school has an orange orchard.
C. The river is far from our school.
D. The teachers only teach us Chinese,English and math.
地下水位埋深为4.0m，采用桩基础，按《公路工程抗震设计规范》计算桩侧阻力时，砂层的平均折减系数为（）。