单项选择题

A、
B、
C、
D、

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original bills of lading must bear a signature in the form. described in UCP600 and the name of the carrier must appear on the face of the bill of lading，identified as the carrier． If an agent signs a bill of lading on behalf of a carrier，the agent must be identified as agent，and must identify the carrier on whose behalf it is signing，unless the carrier has been identified elsewhere on the face of the bill of lading． If the master(captain)signs the bill of lading，the signature of the master(captain)must be identified as“master”(“captain”)．In this event，the name of the master(captain)need not be stateD.If an agent signs the bill of lading on behalf of the master(captain)．The agent must be identified as agent and the name of the master(captain)on whose behalf it is signing must be stateD.

单项选择题

通过有性杂交，既可以把分散在不同亲本上的优良性状组合到杂种中，也可以把特定不良性状从某一亲本中去除。

A．对
B．错

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