细胞学标本最常用的固定液是（）
A.95％乙醇
B.乙醚-乙醇固定液
C.Carnoy固定液
D.甲醇
E.丙酮
参考答案：A
如何做好出版物进销信息业务信息资料的保管？
David is the ______ holder of the world 5,000-meter race world record, hut there is no guarantee that he will win in the Olympic Games.
A. prevalent B. dominant C. current D. prominent
