题目内容

This course prepares non-native speakers for the internationally recognized First Certificate in English.
Syllabus(课程大纲)
Speaking skills are taught as part of an integrated approach. Special emphasis is placed on the ability to communicate successfully at all levels. Listening skills are also taught as part of an integrated approach. Extensive use is made of our modern language laboratory and video self-access center.
Grammar practice is an essential part of the preparation for the examination. Students are introduced to word processing on computers.
Integrated into our basic syllabus for speaking, listening and reading are regular classes on British life and institutions including the legal system, politics and the press literary(文学的) texts form. a part of all courses.
Careers and future study
The FCE is an intermediate qualification internationally recognized in commerce, industry and higher education.
Admission
Application-refer direct to the Language Center, University Brighton, Farmer, Brighton BN 19PH for details and application form.
Contact
Course leader: Martin Wilson 211-0934398
Training Course for FCE
Intended for:【46】of English to obtain the internationally recognized First Certificate in English
Skills to be trained: speaking,【47】and reading Teaching aids available: Modern【48】and【49】self access center Contact person:【50】

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We are enclosing a copy of our terms business，where you will find details of our quantity

王某准备从证券市场购入 A、B、C、D四种股票组成投资组合。已知A、B、C、D四种股票的β系数分别为0.8、1.4、1.8、2.0。现行国库券的收益率为10%，市场平均股票的必要收益率为14%。
要求：
(1) 采用资本资产定价模型分别计算这四种股票的预期收益率。
(2) 假设王某准备长期持有A股票，A股票去年的每股股利为5元，预计年股利增长率为 6%，当前每股市价为60元。投资A股票是否合算？
(3) 若王某按5：2：3的比例分别购买了A、B、C三种股票，计算该投资组合的β系数和预期收益率。
(4) 若王某按3：2：5的比例分别购买了B、C、D三种股票，计算该投资组合的β系数和预期收益率。
(5) 根据上述(3)和(4)的结果，如果王某想降低风险，应选择哪一种投资组合？

阅读以下说明和C代码(代码13-4)，将应填入(n)处的字句写在对应栏内。
【说明】
在一公文处理系统中，开发者定义了一个公文结构OfficeDoc，其中定义了公文应该具有的属性。当公文的内容或状态发生变化时，与之相关联的DocExplorer结构的值都需要发生改变。一个OfficeDoc结构能够关联一组DocExplorer结构。当OfficeDoc结构的内容或状态发生变化时，所有与之相关联的DocExplorer结构都将被更新，这种应用被称为观察者模式。以下代码采用C语言实现，能够正确编译通过。
【代码13-4】
include＜stdio.h＞
define OBS_MAXNUM 20 /一个OfficeDoc变量最多能够关联的DocExplorer变量的个数/
typedef void((1) )(struc OffieeDoc, struct DoeExplorer)I;
struct DocExplorer{
func update;/DocExplorer结构采用的更新函数/
/其它的结构字段省略/
};
struet OffieeDoc{
(2) myObs[OBS_MAXNUM];
/存储所有与OfficeDoc相关联的DocExplorer结构指针/
int index;/与OffieeDoc结构变量相关联的DoeExplorer结构变量的个数/
}；
void attaeh(struct OfficeDocdoc, struct DocExplorerob){
/关联Observer结构ob与OffieeDoe结构doe/
int loop=0;
if(doc-＞index＞=OBS_MAXNUM｜｜ob==NULL)return;
for(loop=0, loop＜doc-＞index; loop++)
if(doc-＞myObs[loop]==ob)return;
doc-＞myObs[doe-＞index]=ob；
doc-＞index++;
}
void detaeh(struct OfficeDocdoc, struct DocExplorerob){
/解除doc结构与ob结构间的关联/
int loop;
if(ob==NULL)return;
for(loop=0;loop＜doc-＞index; loop++){
if(doe-＞myObs[loop]==ob){
if(loop＜=doc-＞index-2)
doc-＞myObs[loop]=doc-＞myObs[(3)];
doc-＞myObs[doc-＞index-1]=NULL;
doc-＞index——;
breack;
}
}
}
void updatel(struct OfficeDoedoe, struct DoeExplorer ob){
/更新ob结构的值，更新代码省略/
} void update2(struct OffieeDocdoc,struet DocExplorer ob){
/更新ob结构的值，更新代码省略/
}
void notifyObs(struct OfficeDoc* doc){
/当doc结构的值发生变化时，通知与之关联的所有DocExplorer结构变量/
int loop;
for(loop=0; loop＜doc-＞index; loop++){
(doc-＞myObs[loop])-＞update((4));
}
}
void main(){
struct OfficeDoc doc; /定义一了OfficeDoe变量/
struct DocExplorer explorer1, explorer2; /定义两个DocExplorer变量/
/初始化与OfficeDoc变量相关的DocExplorer变量个数为0/
doc.index=0;
explorer1.update=update1; /设置explorer1变量的更新函数/
explorer2. update=update2; /设置explorer2变量的更新函数/
attach(&doc, &explorer1); /关联explorer1与doc对象/
attach(&doc, &explorer2); /关联explorer2与doc对象/
/其它代码省略/
(5); /通知与OfficeDoe相关的所有DoeExploer变量/
return;
}

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