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问题 单项选择题

某建筑场地地下水位为地表面下2.5m，地层为黏性土夹有砾石，桩径为1.0m，桩端持力层为强风化砾岩，则应采用的桩型与成桩工艺应为（）。

A.沉管灌注桩

B.冲击成孔灌注桩

C.人工挖孔灌注桩

D.螺旋钻孔灌注桩

答案

参考答案：B

解答题
计算：
8
+3
1
3
-
1
2
+
3
2
．
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单项选择题

Fifty-three thousand shouting enthusiasts filled the stadium; they had come to watch the first game of the season and to cheer the home team.

A．enthusiasts filled the stadium to come

B．enthusiasts, filling the stadium, had come

C．enthusiasts filled the stadium; and had come

D．enthusiasts filling the stadium, who had come
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