测定胎儿肾成熟度()
A.羊水泡沫试验
B.羊水肌酐测定
C.羊水胆红素测定
D.羊水脂肪细胞出现率
E.羊水细胞学检查
参考答案:B
— your dictionary?
—It's on the table. [ ]
A. Where are
B. What color is
C. How is
D. Where is
离心式压缩机转速的增加,其流量值()
A.增加
B.不变
C.减少
D.偏离工作点