（）是会展组织者宣传和吸引的主要目标.
A.会展观众
B.参展商
C.采购商
D.专业观众
参考答案：D
He is ________that all of us like him very much.
A．a boy so lovely
B．a such lovely boy
C．so a lovely boy
D．such a lovely boy
医学伦理学中最古老、最有生命力的医德范畴是
A．医疗保密B．医疗公正C．医疗权利D．医疗荣誉E．医疗义务
