问题描述：
java返回一个 low 到 high的随机整数 (包括low和high).
Which /* expression */ will always return a value that satisfies the postcondition?( )
(A) (int) (Math.random() * high) + low;
(B) (int) (Math.random() * (high - low)) + low;
(C) (int) (Math.random() * (high - low + 1)) + low;
(D) (int) (Math.random() * (high + low)) + low;
Which /* expression */ will always return a value that satisfies the postcondition?( )
(A) (int) (Math.random() * high) + low;
(B) (int) (Math.random() * (high - low)) + low;
(C) (int) (Math.random() * (high - low + 1)) + low;
(D) (int) (Math.random() * (high + low)) + low;
问题解答：
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