A. 九 B. 十 C. 八
A. be the first individual to board the craft B. drain the hydraulic pressure before lowering the craft C. have a list of the persons assigned to the lifeboat D. All of the above
A. 正确 B. 错误
A. 麻醉品 B. 精神药物 C. 其他类 D. A+B+C