被保险人因出险施救而产生的费用或者因此而遭受的损失，应当由保险人承担，保险人所承担的

花器官的形成与发育要求有适当的温度和光照、光周期，但大多数花卉种类器官的形成与发育不受（）的影响。

A.温周期

B.水周期

C.光照周期

D.光周期

A company has the following data associated with it: A target capital structure of 10% preferred stock, 50% common equity and 40% debt. Outstanding 20-year annual pay 6% coupon bonds selling for $894. Common stock selling for $45 per share that is expected to grow at 8% and expected to pay a $2 dividend one year from today. Their $100 par preferred stock currently sells for $90 and is earning 5%. The company’s tax rate is 40%. What is the after tax cost of debt capital and after tax cost of preferred stock capital Debt Capital Preferred Stock Capital（）①A. 4.2% 6.3% ②B. 4.5% 5.6% ③C. 4.2% 5.6%

A. ①

B. ②

C. ③

一般来说，当市场利率下跌时，债券的市场价格也会跟随下跌。

钻井工程中，地层压力和（）是科学地进行钻井设计和施工的基本 数据。

饭店应当按照规定的时限免费提供住店客人贵重物品保管服务。