Which of the following can help train speaking?

A . Too many hosts in a broadcast domain B . Full duplex operation C . Broadcast storms D . Multicasting E . Segmentation F . Low bandwidth

A .  Register databases if granted the register database privilege B .  See all databases in the recovery-catalog schema C .  See all database-related metadata in the recovery catalog if they are granted access to that database D .  Unregister databases from the RVPC catalog that were not granted to the RVPC catalog owner with  the grant command E .  Not be connected to with the RMAN command-line catalog parameter for backup or recovery purpose

A . Vanity has more often been found in idealists. B . The fast-fashion industry ignores sustainability. C . People are more interested in unaffordable garments. D . Pricing is vital to environment-friendly purchasing.

A . Row B . Page C . Table D . Colum

A．College students are more interested in sightseeing. B．Those with a high school degree only do not like playing sports. C．High school graduates enjoy being with their friends. D．People with lower incomes are more likely to spend their leisure time watching TV.

A.Skills of the resource pool B.Calendar dates C.Constraints D.All of the above E.A and B only

A.Using imprecise language (i.e. nearly, approximately) B.Mixing tasks, specifications, special instructions and approvals C.No pattern, structure or chronological order D.Wide variation in the size of tasks or details of work E.All of the above

A．The riders are competitive and fond of taking risks. B．People except the riders show little interest in cyclo-cross. C．Before 1967, amateur and professional classes had never been separated in competition. D．Helpers are often hired by the riders.

A．Barriers Made by People B．Functions of Communication C．Restrictions on Transportation D．Progress o Human Society

A．unexpected B．expected C．controversial D．insignificant

A．The reporter will dismiss the subcontractor sooner or later. B．It will probably need more crew when dealing with the work indoors. C．The work will fall farther behind if there is no extra electricians being added. D．The framing, roofing, and siding is likely to have been finished by the middle of October if weather permitted.

A．An assertion is made and a specific supporting example is given. B．A conventional model is dismissed and an alternative introduced. C．The results of recent research are introduced and summarized. D．Two oppos to points of view are presented and evaluated. 此题为多项选择题。

A．We shouldn't travel long distance. B．We should save water C．We should often repair our cars.

A．Anxietyofacademicperformance B．Failureinexams． C．Stressoffundingtheirlivingandcollegefees． D．Aand C．

A．A.LOC alarm B．B.Mismerge alarm C．C.Forced switching command (FS) D．D.Manual switching command (MS)

A．Caring and determined B．Honest and responsible C．Ambitious and sensitive D．Innocent and single-minded