複選題47. Which of the following are desirable properties of a hash function h(x)?(A) If x1,...,xn are the items to be hashed. then the numbers h(x1),..., h(xn) should be uniformly distributed over the (B) The range of h(x) should incinde a wide r range of integers. (C) The range of h(x) should stay within the desired hash-table sizc. (D) It should be computable in O( 1) time. (E) It should take distinct values over all possible items to be hashed. integers.