下列大环内酯类抗菌药物，对流感嗜血杆菌作用优异的是（）
A.红霉素
B.交沙霉素
C.克拉霉素
D.螺旋霉素
E.麦迪霉素
参考答案：C
Passage One
Which of the following is the most appropriate title for the passage a. A New Trend in Global Tourism Industry b. Global Tourism Industry and Employment c. Global Tourism Industry and Marketing Campaigns d. Major Players in Global Tourism Industry
