1. [单选题]在请求无线电医疗咨询前，应对外伤病人准备()
A. 准备叙述如何受伤
B. 受伤发生的时间
C. 以上皆应具备
2. [单选题]在化学品船上通常采取()措施以防止货品之间的反应危害。
A. 单层货舱壁隔离
B. 独立货物系统管系
C. 环境控制
3. [单选题]眼部化学物品灼伤的现场处理，首先是______。
A. 包扎伤眼
B. 止血
C. 点眼药水
D. 彻底冲洗
4. [单选题]The desirable properties or a marine fuel oil should include_______.
A. high flash point and high viscosity
B. low flash point and high viscosity
C. low heating value and high sulphur content
D. high heating value and low sulphur content
5. [单选题]_______control system is one in which the control action is independent of the output.
A. Feed back
B. Negative feed back
C. Close loop
D. Open loop
