建筑施工图的内容包括（）。
A.设计说明
B.总平面图
C.建筑平面图
D.建筑立面图
参考答案：A, B, C, D
An analyst does research about common probability. A return distribution has a mean of 1.8% and a variance of 2.25. If returns are normally distributed, the probability of observing a return value less than -1.2% is closest to:（）
A. 1.0%
B. 2.5%
C. 5%
