既能扩张支气管平滑肌，又能减轻支气管粘膜水肿的药物是
A．肾上腺素B．吗啡C．异丙肾上腺素D．特布他林E．氨茶碱
参考答案：D
如果市场投资组合的实际收益率比预期收益率大10%，某证券的口值为1，则该证券的实际收益率比预期收益率大()。
A.85%
B.50%
C.10%
D.5%
In relation to the Securities Law of China:
(b) explain the term underwriting with fi rm commitment for an initial public offer of securities; (2 marks)
