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（ ）is especially valuable in locations where electrical connections are not available
A.Microcomputer
B.Minicomputer
C.Mainframe
D.Notebook PC
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inform the students of what is right or wrong.B
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by translating HTTP requests to HTTPSB
by refusing client connections that are unnecessarily refreshed by end usersC
by multiplexing numerous client-side connections to fewer server-side connectionsD
by multiplexing numerous server-side connections to fewer client-side connections
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1，2，3B
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单选题Following is the list of locations in random order where oranfstab can be placed. 1./etc/mtab 2.$ORACLE_HOME/dbs/oranfstab 3./etc/oranfstab What is the sequence in which Direct NFS will search the locations?（）A
1, 2, 3B
3, 2, 1C
2, 3, 1D
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单选题As sought after for speaking ability, African Grey parrots, being considered valuable by both researchers and pet owners.A
As sought after for speaking ability, African Grey parrots, being considered valuable by both researchers and pet owners.B
African Grey parrots sought after for their ability to speak who are considered valuable by both researchers and pet owners.C
Sought after for their speaking abilities, African Grey parrots are considered valuable by both researchers and pet owners.D
Sought after for their speaking abilities, researchers and pet owners consider African Grey parrots valuable.E
Sought after because of their speaking ability, researchers and pet owners who are considering African Grey parrots valuable.
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单选题A transformer in an electric circuit serves to （）A
generate its own electrical powerB
transform electrical energy into mechanical energyC
increase or decrease circuit voltage as requiredD
convert AC current to DC current
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