在固井后72h之内进行声幅测井时，解释标准为相对幅度大于（）为水泥胶结差。
A.20%
B.30%
C.35%
D.40%
参考答案：A
After his wife died in an accident, he had to keep himself________to forget his sorrow for the time being. [ ]
A. occupy
B. occupying
C. occupied
D. to occupy
治疗疔疮的代表方剂是：（）
A.五味消毒饮
B.仙方活命饮
C.托里消毒散
D.普济消毒饮
E.银翘解毒丸
