轻金属包括（）。
A.镁
B.铝
C.铍
D.金
E.铂
参考答案：A, B, C
The brave soldier was willing to risk _____ his life rather than _____ himself up to the enemy. [ ]
A. lost; give
B. losing; giving
C. losing; give
D. lose; giving
施工组织设计的审查不包括（）的审查。
A．施工方案
B．施工平面图
C．施工进度计划
D．施工技术经济指标
