●Adding 5 people to a 4 person team increases the communication channels by a factor of (75).
(75) A. 3 times
B. 4 times
C. 5 times
D. 6 times
第1题:
阅读下列程序说明和C代码,回答问题1~2。
[说明]
本程序用古典的Eratosthenes的筛法求从2起到指定范围内的素数。如果要找出2至10中的素数,开始时筛中有2到10的数,然后取走筛中的最小的数2,宜布它是素数,并把该素数的倍数都取走。这样,第一步以后,筛子中还留下奇数3、5、7、9:重复上述步骤,再取走最小数3,宣布它为素数,井取走3的倍数,于是留下5、7。反复重复上述步骤,直至筛中为空时,工作结束,求得2至 10中的全部素数。
程序中用数组sieve表示筛子,数组元素sieve[i]的值为1时,表示数i在筛子中,值为-1时表示数i已被取走。
[程序]
include < stdio, h >
define MAX 22500
main( )
{ unsigned int i , range , factor , k;
int sieve[MAX];
prinff( "please input the 'range:" );
scanf(" %d" ,&range); /* range 指出在多大的范围内寻找素数* /
for(i=2 ;i<=range; i++) (1); /*筛子初始化*/
factor = 2 ;
while (factor < = range) {
if((2)= = 1)l /*筛子中最小数是素数*/
pfinff( "% d\t" ,factor);
k = factor;
while (k < =range) { /* 取走素数的倍数*/
(3);
k=(4);
factor + +;
}
}
[问题1]将程序代码中的(1)~(4)处补充完整。
[问题2]在上述代码的执行过程中,若factor为5,从筛子中取走的头两个数是5和(5)。
第2题:
Anetworktechnicianisinstallingaseriesofthreeaccesspointstocovertheentirewingofabuilding.Eachaccesspointhasawiredconnectionand802.11gisbeingusedforthewirelesstransmission.Whichofthefollowingchannelsshouldbeusedfortheaccesspoints?()
A.Channels1-6-11
B.Channels1-3-5
C.Channels7-11-1
D.Channels2-4-6
第3题:
4、美国提出的学生核心素养框架中Learning and innovation skills的4Cs指的是?
A.Critical thinking, communication, collaboration, creativity
B.Critical thinking, cultural understanding, collaboration, creativity
C.Critical thinking, communication, creativity, cultural understanding
D.cultural understanding, collaboration, creativity, communication
第4题:
Virtualization is an approach to IT that pools and shares (1) so that utilization is optimized and supplies automatically meet demand. Traditional IT environments are often silos, where both technology and human (2) are aligned around an application or business function. With a virtualized (3), people, processes7 and technology are focused on meeting service levels, (4) is allocated dynamically, resources are optimized, and the entire infrastructure is simplified and flexible. We offer a broad spectrum of virtualization (5) that allows customers to choose the most appropriate path and optimization focus for their IT infrastructure resources.
A.advantages
B.resources
C.benefits
D.precedents
第5题:
2、类Person中定义的静态方法Fun(),正确调用该方法的语法格式是()
A.People实例对象.Fun()
B.Fun()
C.People.Fun()
D.以上都不对