等渗尿相当于尿比重在
A．＞1.025
B．＜1.010
C．1.015～1.025
D．1.015
E．1.010±0.003
参考答案：C
The coal miners in the coal mine for 10 hours before we came to their rescue.
A．had trapped
B．had been trapping
C．had been trapped
D．would have been trapped
