题目内容

()是国家教育行政部门．根据教育方针和学校的性质，任务而制定的有关教育教学工作的指导性文件。

A. 教学计划
B. 教学大纲
C. 教科书
D. 教学指导书

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Fire protection regulations for towing vessels require any fuel line subject to internal head pressure from fuel in the tank to（）.

A. be fitted with a positive fuel shut-off valve located at the tank
B. have a shut-off valve at the top of the tank
C. have a gate valve easily accessible in the space where the tank is located
D. have a drain cock at the lowest point in the fuel line

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