进水管的冲洗流速一般采用()
A.0.8-1.2m/s
B.1.0-1.2m/s
C.1.2-1.5m/s
D.1.5-1.8m/s
参考答案:C
—____ you please tell me your name?
—Sure. I’m Linda.
A.Do
B.Am
C.Could
D.Is
药物制成微囊后可提高其稳定性。()