自然灾害应当单独列项统计，其（）不计入单位事故总数。
A.起数
B.伤人数
C.亡人数
D.直接经济损失
参考答案：A, B, C, D
Hearing the exciting news, he was too excited to ____ himself. [ ]
A. contain
B. include
C. manage
D. command
有氧呼吸
