世行工程造价构成中，应急费包括（）
A.未明确项目准备金
B.建设成本上升费
C.不可预见准备金
D.运费和保险费
参考答案：A, C
I lived with my sister this summer and didn’t have to pay rent. So I _____ save most of my salary.
A．could
B．would
C．was able to
D．should
外伤性腹腔实质脏器破裂，确诊中最有意义的检查方法是（）。
A.血压与脉搏的观察
B.超声波检查
C.血红蛋白值及红细胞计数观察
D.腹腔穿刺
E.腹部X线平片
I lived with my sister this summer and didn’t have to pay rent. So I _____ save most of my salary.