Sort the sequence {15, 9, 7, 8, 20, -1, 4}, and after one pass, the data arrangement becomes {9, 15, 7, 8, 20, -1, 4}, then The sorting method used is _____.
A. selection sort
B. Direct insertion sort
C. heap sort
D. hill sort
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The advantages of sequential storage are large storage density and high efficiency of insertion and deletion.()
Given the bidirectional circular linked list L of the leading node, the condition to judge it as an empty table is l-> next==L && l-> prior==L.()
The static list is similar to the dynamic list in the insertion and deletion of elements. No element movement is required.()
String commonly used storage methods are: sequence string, heap string, block chain string.()