题目内容
（请给出正确答案）
[多选题]
查看key的过期时间是哪个（）
A.expire key
B.ttl key
C.persist key
D.set key
答案
TTLKEY
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题目内容
（请给出正确答案）
A.expire key
B.ttl key
C.persist key
D.set key
答案
TTLKEY
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