In container cargo transportation, the bill of lading serves as a receipt for goods, an evidence of the contract of carriage, and a document of title to the goods. The carrier issues the B/L according to the information in the (1) . The shipped B/L must indicate that the foods have been loaded on board or shipped on a named vessel, and it must be signed by the carrier or the (2) or the agent on behalf of the carder. The originals are marked as "original" on their face and all have equal value, that is, all have the same validity. The original B (s) /L are (3) , one of which must be surrendered to the (4) at destination, duly endorsed in exchange for the goods or the delivery order. When one of the originals being surrendered to the carrier, the others become (5) .

A:evidence of the contract of carriage B:a receipt of goods C:proof of ownership of goods D:the contract of carriage

汉译英：“装往地点”，正确的翻译为（）。

A:Place of Receipt B:Pre-carriage C:Destination D:Stowed

在双向链表中删除指针p所指的结点(pre和next，是结点的指针域，pre指向结点的前驱，next指向结点的后继)，则需要执行( )。

A:p↑．next：=p↑．pre；p↑．pre：=p； B:p↑．next↑．pre：=p↑．pre；p↑．pre↑．next：=p； C:p↑．pre：=p↑．next；p↑．next=p↑．pre； D:p↑．pre↑．next：=p↑．next；p↑．next↑．pre：=p↑．pre；

对树中的一个结点，在先根序列中序号为pre(x)，在后根序列中序号为post(x)，若树中 x是结点y的祖先，下列条件中正确的是 ______。

A:pre(x)＜pre(y)和post(x)＜post(y) B:pre(x)＜pre(y)和post(x)＞post(y) C:pre(x)＞pre(y)和pos(x)＜post(y) D:pre(x)＞pre(y)和post(x)＞post(y)

对树中的一个结点，在先根序列中序号为pre(x)，在后根序列中序号为post(x)，若树中x是结点y的祖先，下列条件中正确的是

A:pre(＜pre(和post(＜post( B:pre(＜pre(和post(＞post( C:pre(＞pre(和post(＜post( D:pre(＞pre(和post(＞post(

对树中的一个结点，在先根序列中序号为pre(x)，在后根序列中序号为post(x)，若树中 x是结点y的祖先，下列条件中正确的是 ______。

A:pre(＜pre(和post(＜post( B:pre(＜pre(和post(＞post( C:pre(＞pre(和pos(＜post( D:pre(＞pre(和post(＞post(

对树中的一个结点，在先根序列中序号为 pre(x)，在后根序列中序号为 post(x)，若树中 x 是结点 y 的祖先，下列条件中正确的是______。

A:pre(x)< pre(y)和 post(x)< post(y) B:pre(x)< pre(y)和 post(x)> post(y) C:pre(x)> pre(y)和 post(x)< post(y) D:pre(x)> pre(y)和 post(x)> post(y)

对树中的一个结点，在先根序列中序号为pre(x)，在后根序列中序号为post(x)，若树中x是结点y的祖先，下列条件中正确的是 ( )。

A:pre(x)＜pre(y)和post(x)＜post(y) B:pre(x)＜pre(y)和post(x)＞post(y) C:pre(x)＞pre(y)和post(x)＜post(y) D:pre(x)＞pre(y)和post(x)＞post(y)