pects are interrelated, each of them covers a number of(48)and goals winch are very specific. The progress being made in teaching(49)is reflected by the fact that most(50)science curricula contain a broad spectrum of programming courses, each emphasizing a different aspect of programming.

A．notation

B．physical

C．function

D．discipline

E．philosophy

A．complexity

B．minimize

C．indisposing

D．library

E．maximize

A．union

B．two

C．numbers

D．between

E．within

in such a short time, no surprise to hear who say: "It will define the leading edge(73)the next five years or so." The most remarkable(74)mobile computers is the amount of data storage and memory packed(75)their tiny boxes. These devices not only handle windows easily but also run storage-hungry programs.

A．included

B．include

C．have included

D．have become

E．had become

A．readable

B．reusable

C．possible

D．constructions

E．syntactic

A．separate

B．connected

C．compared

D．selected

your shared Ethernet of token-ring LAN is tough call. Users and analysts involved in(101)high-speed LANs have learned the benefits of each. However, there are trade-offs to each, and(102)which fast LAN technology to choose is critical for(103)network performance problems and(104)costly purchasing mistakes.

A．avoiding

B．clipping

C．choosing

D．deciding

E．dissolving

A．impossible

B．fearful

C．feasible

D．program

E．question

vides a(126)for information exchange among those devices. The scope of the LAN is small typically a single building or a cluster(叢)of buildings. The LAN is usually owned by the same organization that owns the(127)devices. The internal data rate of LAN is at least several Mb/s.The basic of LAN communication is broadcasting. At each station, there is a transmitter/receiver that communicates over a(128)shared, By other stations. A transmission from any one station is(129)to and received by all other stations.

A．broadcast

B．cable

C．control

D．interconnects

E．internet

A．look

B．looks

C．account

D．accounts