莫氏试验主要观察下列哪些指标（）
A.尿量和尿比密
B.尿渗量和尿比密
C.尿量和尿渗量
D.尿渗量和尿Na
E.尿比密和尿Na
参考答案：A
Stay away from junk food, please. It's bad for us, _____ for children! [ ]
A. recently
B. especially
C. probably
D. nearly
古典诗词中，全篇咏燕的妙词，首推史达祖的哪一首词？
