温控释放装置动作后,活动式防火窗的窗扇自动关闭时间不应大于以下哪个选项?
A. 30s
B. 45s
C. 60s
D. 90s
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强化上级纪委对下级纪委的领导,纪委发现同级党委主要领导干部的问题,可以()向上级纪委报告。
A. 直接
B. 信函
C. 书面
D. 间接
You are underway in reduced visibility.You hear the fog signal of another vessel about 20°
A. alter course to starboard to pass around the other vessel
B. reduce your speed to bare steerageway
C. slow your engines and let the other vessel pass ahead of you
D. alter course to port to pass the other vessel on its portside
两台直流起动/发电机由发动机辅助齿轮驱动,起动发电机的冷却是:
A. 燃油
B. 滑油
C. 空气
D. 液压油
胃癌组织学类型以何者为主
A. 鳞癌
B. 腺癌
C. 腺鳞癌
D. 未分化癌
E. 实体癌