A company is considering issuing either a straight coupon bond or a coupon bond with warrants attached. The proceeds from either issue would be the same. If the firm issues the bond with warrants attached instead of the straight coupon bond, which of the following ratios will most likely be lower for the bond with warrants（）

A. Return on assets.

B. Debt on equity ratio.

C. Interest coverage ratio.

关于遗传早现，叙述正确的有（）

A.遗传早现仅见于多聚谷氨酰胺扩增性共济失调

B.父系遗传时CAG链更倾向于延长，而母系传递时倾向于稳定或缩短

C.SCA6致病基因的CAG重复在代间传递时稳定

D.遗传早现与动态突变分子不稳定有关，也和观察偏倚有关

E.遗传早现在常规突变脊髓小脑共济失调（SCA.一般不明显