对抗疟药描述正确的是
A.乙胺嘧啶能引起急性溶血性贫血B.奎宁根治良性疟C.青蒿素治疗疟疾最大缺点是复发率高D.伯氨喹可用作疟疾病因性预防E.氯喹能根治间日疟
参考答案:C
史学家陈旭麓在《中国近代社会的新陈代谢》中提出:“就其主观动机而言,他们未必有真心打破旧轨,但他们的主张却历史的包含着逸出旧轨的趋向。”文中的“他们”是
A.洋务派
B.顽固派
C.维新派
D.革命派
A municipal bond selling at 12% above par offers a yield of 3.2%. A taxable Treasury note selling at an 8% discount offers a yield of 4. 6%. An investor in the 32.5% tax bracket wishes to purchase an equal dollar amount of both bonds. The after-tax yield of the two-bond portfolio is closest to:()
A. 2.63%.
B. 3.90%.
C. 3.15%.