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【多选题】
ATM交换技术的特点有（ ）。A.
在网络出现拥塞时不会丢弃信元
B.
采用固定长度的数据包，信头简单，可减少处理开销
C.
ATM技术简化了网络功能与协议
D.
采用了逐段链路进行差错控制、流量控制的控制过程
E.
采用面向连接的工作方式，通过建立虚电路来进行数据传输，同时也支持无连接业务
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举一反三
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A.
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B.
process
C.
unattainable goal
D.
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A.
a recording artist
B.
a French teacher
C.
a student
D.
an engineer
【简答题】Direction: Read the following passage and do the activities after it. The Hazards of Being an Only Child 1 Many people who have grown up in multichild families think that being an only child is the...
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