A、means of rheostat the governor settings
B、a balance coil excitation
C、adjusting the governor settings
D、changing excitation
更多“If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）”相关的问题
A、a rheostat B、a balancing coil C、changing field excitation D、adjusting the governor settings
A、means of rheostat the governor settings B、a balance coil excitation C、adjusting the governor settings D、changing excitation
A、has no more than two compartments B、has two compartments in addition to the engine room C、will sink if any two compartments are flooded D、will float if any two adjacent compartments are flooded
A、The ARPA will generate data as if the target was still being tracked by radar B、The ARPA will give an audible and/or visual lost target alarm C、The ARPA will generate data based on sea return echoes from the vicinity where the target was lost D、The ARPA has lost all memory of the target and must recompute the target data
A、You use a NEXTVAL pseudo column to look at the next possible value that would be generated from a sequence, without actually retrieving the value. B、You use a CURRVAL pseudo column to look at the current value just generated from a sequence, without affecting the further values to be generated from the sequence. C、You use a NEXTVAL pseudo column to obtain the next possible value from a sequence by actually retrieving the value from the sequence. D、You use a CURRVAL pseudo column to generate a value from a sequence that would be used for a specified database column. E、If a sequence starting from a value 100 and incremented by 1 is used by more then one application, then all of these applications could have a value of 105 assigned to their column whose value is being generated by the sequence. F、You use REUSE clause when creating a sequence to restart the sequence once it generates the maximum value defined for the sequence.
A、You use a NEXTVAL pseudo column to look at the next possible value that would be generated from a sequence, without actually retrieving the value. B、You use a CURRVAL pseudo column to look at the current value just generated from a sequence, without affecting the further values to be generated from the sequence. C、You use a NEXTVAL pseudo column to obtain the next possible value from a sequence by actually retrieving the value from the sequence. D、You use a CURRVAL pseudo column to generate a value from a sequence that would be used for a specified database column. E、If a sequence starting from a value 100 and incremented by 1 is used by more then one application, then all of these applications could have a value of 105 assigned to their column whose value is being generated by the sequence. F、You use REUSE clause when creating a sequence to restart the sequence once it generates the maximum value defined for the sequence.
A、You use a NEXTVAL pseudo column to look at the next possible value that would be generated from a sequence, without actually retrieving the value. B、You use a CURRVAL pseudo column to look at the current value just generated from a sequence, without affecting the further values to be generated from the sequence. C、You use a NEXTVAL pseudo column to obtain the next possible value from a sequence by actually retrieving the value from the sequence. D、You use a CURRVAL pseudo column to generate a value from a sequence that would be used for a specified database column. E、If a sequence starting from a value 100 and incremented by 1 is used by more then one application, then all of these applications could have a value of 105 assigned to their column whose value is being generated by the sequence. F、You use REUSE clause when creating a sequence to restart the sequence once it generates the maximum value defined for the sequence.
A、You use a NEXTVAL pseudo column to look at the next possible value that would be generated from a sequence, without actually retrieving the value. B、You use a CURRVAL pseudo column to look at the current value just generated from a sequence, without affecting the further values to be generated from the sequence. C、You use a NEXTVAL pseudo column to obtain the next possible value from a sequence by actually retrieving the value from the sequence. D、You use a CURRVAL pseudo column to generate a value from a sequence that would be used for a specified database column. E、If a sequence starting from a value 100 and incremented by 1 is used by more than one application, then all of these applications could have a value of 105 assigned to their column whose value is being generated by the sequence. F、You use a REUSE clause when creating a sequence to restart the sequence once it generates the maximum value defined for the sequence.
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