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正确
thismatrix <- @(6)(c("apple", "banana", "cherry", "orange"), nrow = 2, ncol = 2)
thismatrix <- matrix(c("apple", "banana", "cherry", "orange"), nrow = 2, ncol = 2)
不正确
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下一题 ❯thismatrix <-w3exercise_input_no_0(c("apple", "banana", "cherry", "orange"), nrow = 2, ncol = 2) |