Does she like _______? [ ]
A. an apple
B. a apple
C. apple
D. an apples
答案：A
羊水过少（）.
A．羊水指数≥20cm
B．羊水指数≥10cm
C．羊水指数≤5cm
D．羊水指数≤3cm
E．羊水指数≤2cm
水冷壁的检修和检查项目有哪些？
