问题描述:
[单选]
When whistle signals are used for launching lifeboats,one short blast means().
A.use the float-free method only
B.lower all boats
C.raise all boats
D.drill is over,secure all boat
参考答案:查看无
答案解析:无
☆收藏
答案解析:无
☆收藏
- 我要回答: 网友(216.73.216.42)
- 热门题目: 1.关于肾母细胞瘤的特点,下列哪 2.耳结核的鼓膜典型变化是()。 3.喉结核在喉镜下最典型的病理变
