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Python程序设计单选题中等

以下哪个是元组的访问方式的正确示例?

At = (1, 2, 3); print(t[0])
Bt = (1, 2, 3); print(t[3])
Ct = (1, 2, 3); print(t[1:3])
Dt = (1, 2, 3); print(t[2,3])