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【单选题】
以下关于Python元组的操作正确的是:
A.
l = (1, 2, 3, 4); l.insert(2, -1);
B.
t = (1, 2, 3, 4); t.pop();
C.
t = (1, 2, 3, 4); t.append(5);
D.
t = (1, 2, 3, 4); list(rerversed(t));
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