问题
单项选择题
During loading or discharging, the tallymen must make contact with（）on duty so as to solve problems in time.
A.ship owner
B.ship's officers
C.shippers
D.consignors
答案
参考答案：B
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During loading or discharging, the tallymen must make contact with（）on duty so as to solve problems in time.
A.ship owner
B.ship's officers
C.shippers
D.consignors
参考答案：B
