在固井后24h之内进行声幅测井时，解释标准为相对幅度小于或等于（）为水泥胶结良好。
A.10%
B.20%
C.15%
D.30%
参考答案：B
Americans think they're good drivers _______ drivers in other countries. [ ]
A. comparing to
B. to compare to
C. compared to
D. being compared to
根据《工程造价咨询企业管理办法》，申请甲级工程造价咨询企业资质，须取得乙级工程造价咨询企业资质证书满（）年。
A.3
B.4
C.5
D.6
