对α受体和β受体均有激动作用的是( )。
A.去甲肾上腺素 B.异丙肾上腺素 C.可乐定D.肾上腺素 E.多巴酚丁胺
参考答案:D
解析: 肾上腺素受体激动药分类
In 1995, the CFA Institute sponsored and funded the Global Investment Performance Standards (GIPS) in response to : ()
A. an increase in insider trading.
B. new regulation passed by the SEC.
C. a need to address issues, such as portability of investment results.
现阶段网上支付系统的种类主要有哪几种方式?