题目内容

表达式{1,2,3}-{3,4,5}和{1,2,3}^{3,4,5}的结果分别是( )。

A. {1, 2}和{1, 2, 4, 5}
B. {1, 2, 4, 5}和{1, 2}
C. {4, 5}和{1, 2, 4, 5}
D. {3}和{1, 2, 4, 5}

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A. {1, 2, 3}>{2, 3, 4}
B. {100, 200, 300}>{200, 300}
C. (110, "ABC")>(120, "DEF")
D. ["456", 123]<["123", 456]

A. "100" in (100, "50+50", 50+50)
B. 100 in ["100", "50+50", 50+50]
C. 100 in {"100", "200", "300"}
D. "20" in {10:"10", 20:"20"}

A. x=y=[100, "300"]
B. x=[100, "300"]; y=[100, "300"]
C. x=y=100
D. x=100; y=100

A. "DEF"
B. "CDEF"
C. "DEFG"
D. "CF"