标题: 英语好的来 [打印本页] 作者: cowboy 时间: 2004-8-14 11:42 标题: 英语好的来 Five offices in a department store-S,T,U,X,and Z-are linked by a network of pnaumatic tubes through which receipts can be sent from one office and received by another.Receipts can be sent through the pneumatic tubes only as follows:
from S to T and from T to S;
from X to Z and from Z to X;
from X to T
from T to U;
from S to X;and
from Z to U.
Q1:Which of the following specifies in its entirety a sequence,from first to last,of offices through which a receipt sent from S to U can pass?
A.S,X,U B.S,Z,U C.S,T,X,U D.S,T,Z,U E.S,X,Z,U
Q2:A receipt sent through the network from S to Z can go along which of the following complete paths?
A.S to X to Z B.S to T to U to Z C.S to T to X to Z
D.S to U to X to Z E.S to U to X to Z
Q3:Which of the following must be true about the receipts sent through the tube network?
A.A receipt sent from S must pass through or terminate at X
B.A receipt sent from T must pass through or terminate at S
C.A receipt sent from T must pass through or originate from S
D.A receipt sent to X must pass through or originate from Z
E.A receipt sent to Z must pass through or originate from Z
Q4:Which of the following is a complete and accurate list of all of the office,excluding S,that must be included on the path of any receipt sent through the network to S?
A. T B.X C.T,X D.U,X E.X,Z%&229 %&229%&044作者: 轻弦 时间: 2004-8-14 14:47 标题: 回复: 英语好的来 ANSWERS: