已知环空视粘度FV=12mPa?s，动切力YP=3Pa，井径D_H=21.6cm，钻杆外径D_P=12.7cm，环空返速v_a=1.00m/s，计算塑性粘度约为（）。
A. 10mPa?s
B. 9mPa?s
C. 8mPa?s
D. 7mPa?s

Oh,— You shouldn’t hve told everybody my secret. — Wit minute! I didn’t tellnyone... I swer! — Oh, ________! You big mouth！I don’t buy it B．I men it C．You don’t forget it D．You got itA．I don’t buy itB．I mean itC．You don’t forget itD．You got it

此时应采取的重要措施是()
A. 地西泮止痉
B. 应用降压药
C. 应用地高辛
D. 肌内注射呋塞米(速尿)
E. 采用透析治疗