可排除糖尿病的最大HbA1应小于()
A.10%
B.9%
C.8%
D.6%
E.5%
参考答案:C
It has been two years we left school.
A.since
B.when
C.before
D.as
简述新闻摄影事业的发展历程及代表人物的活动。