男婴,独坐稳,换手,认生,头围43cm
其年龄应为()
A.3个月
B.8个月
C.5个月
D.12个月
E.15个月
参考答案:B
Last year the number of students who graduated with a driving license reached 200,000, a (n)
________ of 40,000 per year. [ ]
A. average
B. number
C. amount
D. quantity
体重为6 kg的足月新生儿,手术前红细胞压积是32%,如果临床估计的允许最低红细胞压积是25%,那么最大的可允许失血量为()
A.158 ml
B.110 ml
C.100 ml
D.92 ml
E.79 ml