All handling and stowage of packaged hazardous materials on board a domestic vessel engaged in foreign trade shall be done under the supervision of ______.
A.a MSA Marine Inspector
B.an officer assigned to the vessel by MSA
C.a officer from CCS
D.the National Cargo Bureau
正确答案：B
从事国际运输的国内船舶所有包装的危险品材料搬移和堆垛应在港监指定人员的监督下完成
