A 23-year-old primigravida client has a normal vaginal delivery. The next day, the nurse assesses the client’s lochia for color, amount, and the presence of clots. Which of the following best describes lochia on the first postpartum day

A. Dark red (loehia rubra), large amount, with many clots.
B. Pink (lochia serosa), moderate amount, no clots.
C. White (lochia alba), scant amount, no clots.
D. Dark red (lochia rubra), moderate amount, with a few small clots.

下列说法正确的是

A．在元素周期表中，每个纵列的价电子层的电子总数一定相等

B．在元素周期表中，s区，d区和ds区的元素都是金属

C．键能是气态基态原子形成化学键释放的最低能量

D．键长越长,往往键能越大,表明共价键越稳定