单项选择题

10BaseT is an Ethernet LAN term meaning a maximum transfer rate of 10Mbps that uses baseband signaling and twisted pair cabling. A 10BaseT Ethernet LAN has a ______ topology.

A. star
B. ring
C. bus
D. none of the above
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单项选择题
Project Time Management includes the processes required to manage timely completion of the project, these processes interact with each other. ______ is following the process - Estimate Activity Durations.
A. Develop Schedule

B. Estimate Activity Resources
C. Define Activities

D. Sequence Activities
单项选择题
（34）（）

A.defense
B.intrusion
C.inbreak
D.protection
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