在湿陷性黄土地区，采用的桩型主要有哪几种？
参考答案：
钻孔（扩底）灌注桩，挖孔（扩底）灌注桩，挤土成孔灌注桩，沉管灌注桩，静压桩，打入式钢筋混凝土预制桩等。
—What do you think of summer in Nanjing?
—Well, it’s sometimes ______ hot and sometimes there is ______ rain.
A．too much, much too
B．too much, too much
C．much too, much too
D．much too, too much
多种经营战略
