以下哪种类型的合同不鼓励卖方控制成本，由此使买方的风险最大（）
A.成本加奖励
B.成本加固定费
C.成本加奖励费
D.成本加成本的一定比例
参考答案：D
Compared to a company that issues convertible debt, a company that issues an equivalent combination of conventional bonds with warrants attached will have:（）
A. greater interest expense and lower total assets.
B. lower interest expense and higher total assets.
C. greater interest expense and greater equity.
简述作为独立性保函，银行保函具有的特征。
