单选题在可变分区存储管理方案中，在对一个分区进行回收时，若该分区的起始地址加长度等于空闲区表中某个登记项所表示空闲区的起始地址，则表示（）A该回收分区的上邻分区是空闲的B该回收分区的下邻分区是空闲的C该回收分区的上、下邻分区都是空闲的D该回收分区的上、下邻分区都不是空闲的
单选题
在可变分区存储管理方案中，在对一个分区进行回收时，若该分区的起始地址加长度等于空闲区表中某个登记项所表示空闲区的起始地址，则表示（）
A
该回收分区的上邻分区是空闲的
B
该回收分区的下邻分区是空闲的
C
该回收分区的上、下邻分区都是空闲的
D
该回收分区的上、下邻分区都不是空闲的
参考解析
解析：
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