电工用具中，最基本的安全用具是（）。
A. 安全帽、安全带、绝缘挡板
B. 绝缘鞋、绝缘手套、绝缘垫
C. 绝缘杆、绝缘手套、验电笔
Which of the followings needs not to be considered for bunkering?（）
A. When to bunker?
B. Type of FO
C. Pollution prevention measures
D. Engineer to be responsible for
Which one of the following is not true according to the passage?（）
A. It’s important to make clear the chain of command within the vessel
B. It is primarily your own responsibility to look after your person safety
C. The porthole is the first choice to escape when in emergency
D. all cabins are fitted with a Survival at Sea Manual
在思考企业市场机会时可以采用哪几种方法开展这项工作（）。
A. 自己遇到过的问题
B. 工作中的问题
C. 其他人遇到过的问题
D. 以上都对
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