Which of the following is NOT an example of event risk（）

A. An interim South American government imposes restrictions on the outflow of capital.

B. The U. S. Food and Drug Administration (FDA) determines that a biotech company’s flagship product is harmful to consumers and cannot be marketed.

C. A corporation calls a large bond issue.

夏月外感风寒，内伤暑湿而致恶寒发热，脘满吐泻宜选（）

A.滑石

B.香薷

C.藿香

D.绿豆

E.金银花