草坪建植区()㎡以上必须有充足的水源和完整的灌溉设备。
A.1200
B.1500
C.1800
D.2000
参考答案：A
His report was so exciting that it was ____ interrupted by applause(掌声). [ ]
A. constantly
B. constant
C. seldom
D. never
声母一般是由辅音充当的，因此可以说，声母和辅音基本上是一回事。
