【单选题】为了保证国际航行的安全,各国运输企业在技术规范、航行程序、操作规则上必须统一。同时,为了便于航空公司间的合作和业务联系,______将世界划分为TC1,TC2,TC3三个大区。
【单选题】指北针符号的圆用细实线绘制,其直径为()mm。
【单选题】为保证国际航行的安全,各国运输企业在技术规范、航行程序、操作规则上必须统一,同时为了便于航空公司间的合作和业务联系,国际航空运输协会(IATA)将世界划分为三个航空运输业务区:T1区、T2区、T3区。下列属于T1区的国家是( )。
【多选题】Which of the following statements about the British Empire are True?
A.
It was an empire which covered the most area in the history
B.
It covered almost a quarter of the Earth's total land area.
C.
Its political,legal,linguistic and cultural legacy is widespread.
D.
It was often described as "the empire on which the sun never sets".
【单选题】指北针符号的圆用细实线绘制,其直径为()mm,指北针尾部的宽度宜为()mm。
【单选题】病人,男性,63岁。既往大便困难,3-4天一次,大便干结,无腹泻、便血,无冠心病史。此次突发腹部疼痛,伴停止排便排气,无呕吐。体格检查:腹部膨隆,以左下腹明显,可见巨大肠型,叩诊为鼓音,肠鸣音活跃,无移动性浊音,指诊直肠空虚,指套有血迹。为进一步诊断,可行哪项检查
【单选题】指北针符号的圆用细实线绘制,其直径为()mm。
【判断题】Benjamin Franklin was described as "master of each and mastered by none―the type and genius of his land.”