Directly to the left and right and slightly in front of the listener
Directly to the left and right and slightly behind the listener
Above and behind the listener
Directly behind the listener
第1题:
Swells that have outrun the storm are produced in the ______.
A.left front quadrant
B.right front quadrant
C.rear
D.directly ahead on the storms projected track
第2题:
In the Northern Hemisphere, the largest waves or swells created by a typhoon or hurricane will be located ______.
A.in the southeast quadrant of the storm
B.directly behind the storm center
C.forward and to the right of its course
D.behind and to the left of its course
第3题:
阅读下列C程序和程序说明,将应填入(n)处的字句写在对应栏内。
【说明】下面是一个用C编写的快速排序算法。为了避免最坏情况,取基准记录pivot时,采用从left、right和mid=[(left+right)/2]中取中间值,并交换到right位置的办法。数组a存放待排序的一组记录,数据类型为T,left和right是待排序子区间的最左端点和最右端点。
void quicksort (int a[], int left, int right) {
int temp;
if (left<right) {
hat pivot = median3 (a, left, right); //三者取中子程序
int i = left, j = right-1;
for(;;){
while (i <j && a[i] < pivot) i++;
while (i <j && pivot < a[j]) j--;
if(i<j){
temp = a[i]; a[j] = a[i]; a[i] = temp;
i++; j--;
}
else break;
}
if (a[i] > pivot)
{temp = a[i]; a[i] = a[right]; a[right] = temp;}
quicksort( (1) ); //递归排序左子区间
quieksort(a,i+1 ,right); //递归排序右子区间
}
}
void median3 (int a[], int left, int right)
{ int mid=(2);
int k = left;
if(a[mid] < a[k])k = mid;
if(a[high] < a[k]) k = high; //选最小记录
int temp = a[k]; a[k] = a[left]; a[left] = temp; //最小者交换到 left
if(a[mid] < a[right])
{temp=a[mid]; a[mid]=a[right]; a[right]=temp;}
}
消去第二个递归调用 quicksort (a,i+1,right)。 采用循环的办法:
void quicksort (int a[], int left, int right) {
int temp; int i,j;
(3) {
int pivot = median3(a, left, right); //三者取中子程序
i = left; j = righi-1;
for (;; ){
while (i<j && a[i] < pivot)i++;
while (i<j && pivot <a[j]) j--;
if(i <j) {
temp = a[i]; a[j]; = a[i]; a[i]=temp;
i++; j--;
}
else break;
}
if(a[i]>pivot){(4);a[i]=pivot;}
quicksoft ((5)); //递归排序左子区间
left = i+1;
}
}
第4题:
设m=ABCDEF,下列表达式不能得到DEF的是().
第5题:
第6题:
A.margin-left:0;margin-right:0;
B.margin-left:auto;margin-right:auto;
C.margin-left:100%;margin-right:100%;
D.margin-left:auto;margin-right:0;
第7题:
第8题:
Roundline is a ______.
A.four-stranded, left- or right-handed line
B.three-stranded, right-handed line
C.three-stranded, left-handed line
D.small tarred hempline of three strands laid left-handed
第9题:
下面这段代码中,变量subString的结果是()。 Dim aString As String = "Left Center Right" Dim subString As String subString = Mid(aString, 13)
第10题:
Cleaning holds are to clean hold from ().