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问题 选择题

Joining the English club at school was _____ best way to improve English.[ ]

A. the

B. /

C. a

D. an

答案

答案：A

单项选择题

Both bus and tree topologies are characterized by the use of multipoint （1）. For the bus, all stations attach, through appropriate hardware （2）known as a tap, directly to alinear transmission medium, or bus. Full-duplex operation between the station and the tap allowsdata to be transmitted onto the bus and received from the （3）. A transmission from anystation propagates the length of the medium in both directions and can be received by all other（4）. At each end of the bus is a （5）, which absorbs any signal, removing it from thebus.

（1）是（）

A.medium

B.connection

C.token

D.resource
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判断题

结合水也称束缚水，系指比较牢固的和细胞胶体或晶体结合而不易移动的水分。
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