（）length of the ship measured from extreme points of the ship forward and aft. ["Length overall","After perpendicular","Amidships","Extreme breadth"]
监狱应在哪些时间组织罪犯参加升挂国旗仪式？
根据《起重机械安全规程》（GB6067-2010）规定，露天工作的起重机上的电气设备应采取（）措施。 ["防沙","防尘","防雨","防昆虫"]
其他条件相同，债券的票面利率越高，债券的价格越高。
You should always wear（）when working on deck. ["helmet","slippers","goggles","immersion suit"]
监区文化活动的主要内容有哪些？
