钻井液中液相体积减小会导致钻井液的密度()。
A.无法判断
B.下降
C.没有影响
D.升高
参考答案:D
什么叫运动处方?怎样制定运动处方?
Fire fighting equipment requirements for a particular vessel may be found on the().
A.4Certificate of Inspection
B.Certificate of Seaworthiness
C.Classification Certificate
D.Certificate of Registry