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[主观题]
The open access problem is nonexistent in timber production mostly
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A.正确
B.错误
A.正确
B.错误
A.正确
B.错误
A.open;close
B.opening;closing
C.open;closed
D.opened;closed
A.Carrier Sense Multiple Access
B.Carrier Sense Media Access
C.Copper System Multiple Access
D.Copper System Media Access
B.to have access to
C.to have access
D.to be accessible to
A.Being summer
B.Been summer
C.To be summer
D.It was summer