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【单选题】
你以前独立完成过一份完整的 ppt 吗?A.
当然，很熟练
B.
做过，但不是自己独立完成的
C.
没做过，但是接触过
D.
从没有接触过
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反馈参考答案：
举一反三
【单选题】The following data relate to inventory item A452: Average usage 100 units per day Minimum usage 60 units per day Maximum usage 130 units per day Lead time 20-26 days EOQ 4,000 units What is the maximu...
A.
3,380 units
B.
6,180 units
C.
7,380 units
D.
8,580 units
【单选题】Great as Russell was, many of his ideas ______ today and are being modified by the work of philoso phers of our time.
A.
are to challenge
B.
may be challenged
C.
have been challenged
D.
are challenging
【单选题】The units of data exchanged by a data link layer protocol are called ( )
A.
Frames
B.
Segments
C.
Datagrams
D.
bit streams
【单选题】Great as Newton was, many of his ideas ______ today and are being modified by the work of scientists of our time.
A.
are to challenge
B.
may be challenged
C.
have been challenged
D.
are challenging
【单选题】The _______ layer is responsible for delivering data units from one station to the next without errors.
A.
physical
B.
data link
C.
trnsport
D.
network
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