单选题船舶在下列哪些情况下配员的构成和数量应不低于最低安全配员的要求(). Ⅰ.航行期间; Ⅱ.停泊期间; Ⅲ.作业期间; Ⅳ.修船期间。AⅠ~ⅣBⅠ~ⅢCⅠ、Ⅲ、ⅣDⅡ、Ⅳ
单选题
船舶在下列哪些情况下配员的构成和数量应不低于最低安全配员的要求(). Ⅰ.航行期间; Ⅱ.停泊期间; Ⅲ.作业期间; Ⅳ.修船期间。
A
Ⅰ~Ⅳ
B
Ⅰ~Ⅲ
C
Ⅰ、Ⅲ、Ⅳ
D
Ⅱ、Ⅳ
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