请简述WLAN网络优化从哪几个方面入手?

题型:问答题 简答题

问题:

请简述WLAN网络优化从哪几个方面入手?

考点:移动通信代维人员专业考试WLAN网络维护WLAN网络维护题库
题型:问答题 简答题

与往年相比,2010年票房过亿的国产贺岁影片明显增加,《喜羊羊与灰太狼之虎虎生威》、《锦衣卫》、《孔子》、《三枪拍案惊奇》、《十月围城》均宣布过亿。电影市场全面繁荣有利于[ ]

①优化产业结构,促进经济发展②提高文化竞争力,增强综合国力③更好地满足人们的文化生活需要

④抵御外来文化,维护国家文化安全

A.①②③

B.①③④

C.①②④

D.②③④

题型:问答题 简答题

以下关于公司公积金的说法正确的有: ( )。

A.公司不得在弥补亏损前提取法定公积金

B.公司提取的法定公积金超过注册资本的 25%后,可以不再提取

C.公司应当在税后利润中提取法定公积金和法定公益金

D.公司发行股份的溢价款应当列入公司的资本公积金,可以用于弥补亏损、扩大经营或者转增资本

题型:问答题 简答题

"This is a really exciting time—a new era is starting," says Peter Bazalgette, the chief creative officer of Endemol, the television company behind "Big Brother" and other popular shows. He is referring to the upsurge of interest in mobile television, a nascent industry at the intersection of telecoms and media which offers new opportunities to device-makers, content producers and mobile- network operators. And he is far from alone in his enthusiasm.

Already, many mobile operators offer a selection of television channels or individual shows, which are " streamed" across their third-generation (3G) networks. In South Korea, television is also sent to mobile phones via satellite and terrestrial broadcast networks, which is far more efficient than sending video across mobile networks; similar broadcasts will begin in Japan in April. In Europe, the Italian arm of 3, a mobile operator, recently acquired Canale 7, a television channel, with a view to launching mobile-TV broadcasts in Italy in the second half of 2006. Similar mobile-TV networks will also be built in Finland and America, and are being tested in many other countries.

Meanwhile, Apple Computer, which launched a video-capable version of its iPod portable music-player in October, is striking deals with television networks to expand the range of shows that can be purchased for viewing on the device, including "Lost", "Desperate Housewives" and "Law & Order". TiVo, maker of the pioneering personal video recorder (PVR), says it plans to enable subscribers to download recorded shows on to iPods and other portable devices for viewing on the move. And mobile TV was one of the big trends at the world’s largest technology fair, the Consumer Electronics Show, which took place in Las Vegas this week.

Despite all this activity, however, the prospects for mobile TV are unclear. For a start, nobody really knows if consumers will pay for it, though surveys suggest they like the idea. Informa, a consultancy, says there will be 125 million mobile-TV users by 2010. But many other mobile technologies inspired high hopes and then failed to live up to expectations. And even if people do want TV on the move, there is further uncertainty in three areas: technology, business models and the content itself.

Paragraph 2 is written to()

A. indicate the test of mobile-TV networks

B. illustrate the widespread interests in mobile TV

C. stress the selection of television channels

D. assess the third-generation (3G) networks

题型:问答题 简答题

阅读以下说明和C++代码,
[说明]
现要编写一个画矩形的程序,目前有两个画图程序:DP1和DP2,DP1用函数draw_a_line(x1,y1,x2,y2)画一条直线,DP2则用drawline(x1,x2,y1,y2)画一条直线。当实例化矩形时,确定使用DP1还是DP2。为了适应变化,包括“不同类型的形状”和“不同类型的画图程序”,将抽象部分与实现部分分离,使它们可以独立地变化。这里,“抽象部分”对应“形状”,“实现部分”对应“画图”,与一般的接口(抽象方法)与具体实现不同。这种应用称为Bridge(桥接)模式。图6-1显示了各个类间的关系。
[图6-1]
[*]
这样,系统始终只处理3个对象:Shape对象、Drawingg对象、DP1或DP2对象。以下是C++语言实现,能够正确编译通过。
[C++代码]
class DP1
public:
static void draw_a_line(double x1,double y1,double x2,double y2)
//省略具体实现


class DP2
public:
static void drawline(double x1,double x2,double y1,double y2)
//省略具体实现


class Drawing
public:
(1) void drawLine(double x1,double y1,double x2,double y2)=0;
;
class V1Drawing:public Drawing
public:
void drawLine(double x1,double y1,double x2,double y2)
DP1::draw_a_line(x1,y1,x2,y2);


class V2Drawing:public Drawing
public:
void drawLine(double x1,double y1,double x2,double y2)
(2)


class Shape
privatc:
(3) dp;
public:
Shape(Drawing*dp);
virtual void draw()=0;
void drawLine(double x1,double y1,double x2,double y2);
;
Shape::Shape(Drawing*dp)

_dp=dp;

void Shape::drawLine(double x1,double y1,double x2,double y2)
//画一条直线
(4)

class Rectangle:public Shape
privatc:
double_x1,_y1,_x2,_y2;
public:
Rectangle(Drawing *dp,double x1,double y1,
double x2,double y2);
void draw();

Rectangle::Rectangle(Drawing*dp,double x1,double y1,double x2,double y2)
(5)

_x1=x1;_y1=yl;_x2=x2;_y2=y2;

void Rectangle::draw()

//省略具体实现

题型:问答题 简答题

《车站客运服务作业标准》中,客运人员仪容仪表“十不”的内容是什么?

更多题库