听力原文:M: I have to type my paper later tonight, but I'm afraid my roommate won't be able to sleep. W: There's a soundproof room in the basement. You can go there and no one will hear it. What will the man probably do?
【单选题】若通过for语句和foreach语句分别实现遍历整型数组arr,for (int i = 0; i < A ; i++) for (int i : B ) System.out.println(arr[i]) ; System.out.println( i ) ;上述语句中B处填( B );