岩溶水按垂直方向可分为垂直循环带，季节循环带，（），深部循环带。（）
A.潜水带
B.承压水带
C.水平循环带
D.地表溶蚀带
参考答案：C
1. Who's that man / woman? He / She's our _______________.2. What's he /she like? He/She's _______________ and _______________.3. How old is he / she? He / She is _______________. 4. Is he / she strict? Yes, _______________.
新生儿肺透明膜病一般均在生后多少小时内出现症状
A．12小时
B．10小时
C．48小时
D．24小时
E．出生时或4～6小时内
