— ____________________?
— They are teddy bears.[ ]
A. What is it
B. What are these
答案:B
()导致PL/SQL中WHILE循环结束。
A.控制传递给EXIT语句
B.Boolean变量或表达式值为NULL
C.Boolean变量或表达式值为TRUE
D.Boolean变量或表达式值为FALSE
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