Cameron Inc. has $10 million of bonds outstanding that are convertible into common shares. The current price per share is $ 44 and the stated conversion price is $ 49 per share. Cameron also has exchangeable bonds issued for $ 20 million that are to be exchanged for shares of Adam Inc. worth $ 20 million (therefore no gain or loss is realized on the exchange). Based solely on the facts provided above, what effect should the convertible bonds and exchangeable bonds have on an analyst’ s assessment of Cameron’ s fundamental debt to total capital ratio Convertible Bonds Exchangeable Bonds ①A. Increase Decrease ②B. No effectDecrease ③C. No effectNo effect

A．

B．

C．

影响心肌传导性高低的主要因素是

A．0期除极速度和幅度
B．4期自动去极速度
C．阈电位水平
D．最大复极电位水平
E．平台期时程