周恩来代表中国政府首次提出和平共处五项原则是在 [ ]
A.1953午中印谈判时
B.1955年亚非会议上
C.1971年第26届联合国大会上
D.1972年尼克松访华期间
答案:A
The Great Wall winds its way from west to east, _______ deserts, _______mountains and ________valleys, until at last it reaches the sea.
A.across; through; over
B.through; on; across
C.across; along; up
D.across; over; through
ASA分级与麻醉手术后的死亡率的关系,哪项是错误的()
A.Ⅰ级为0.1%
B.Ⅱ级为0.9%
C.Ⅲ级为1.8%
D.Ⅳ级为7.8%
E.Ⅴ级为9.4%