A client is being admitted to the labor unit. Because she’s well advanced in labor, the nurse must prioritize the admission questions. Which information is most important to obtain when birth is imminent

A. Duration of previous labor.
B. Frequency of contractions.
C. Presence of bloody show.
D. Expected due dat

股票回购分为公开市场回购和要约回购两类，关于两种回购方式下列说法正确的是（）。

A.一般在股票市场表现欠佳时会进行小规模要约回购

B.与公开市场回购相比，要约回购通常被市场认为是更积极的信号

C.溢价的存在会使要约回购的执行成本较高

D.股票回购可以优化上市公司资本结构