Most of students like to play sports during their holidays. But they exercise in different ways. We did a survey of 100 students  in Liu Chang's class, The picture on the right shows the result, The number of students playing badminton is the largest. Then,     students like playing badminton.

A. 29

B. 27

C. 28

下列有关注射剂的制备，正确的是

A．精滤、灌封、灭菌在洁净区进行

B．配制、精滤、灌封在洁净区进行

C．灌封、灭菌在洁净区进行

D．配制、灌封、灭菌在洁净区进行

E．精滤、灌封、安瓿干燥灭菌后冷却在洁净区进行