[简答题]Suppose your university is going to host a summer camp for high school students.Write a notice to briefly introduce the camp activities,and call for volunteers.You should write about 100 words on the ANSWER SHEET.Do not use your name orthe name of your university.Do not write your address.

[简答题]You are going to host a club reading session.Write an email of about 100 words recommending a book to the club members.You should state reasons for your recommendation.You should write neatly on the ANSWER SHEET.Do not sign your own name at the end of the letter.Use Li Ming instead.Do not vrite the address.（10 points）

[简答题]Suppose your school is going to hold the Chinese Competition for International Students next month,Write for the StudentsJ Union a notice of about 100 words,providing relevant information about the competition.You should write neatly on the ANSWER SHEET.Do not sign your own name at the end of the letter.Use"Students'Union"insteacl.Do not write the address.（10 points）

[单选题]The Dynamic Host Configuration Protocol provides configuration parameters to Internet（ ）.DHCP consists of two components:a（ ）for delivering host-specifie configuration parameters from a DHCP server to a host and a mechanism for allocation of network addresses to hosts.DHCP is built on a client-server model,where designated DHCP server hosts allocate network addresses and deliver（ ）parameters to dynamically configured hosts.DHCP supports three mechanisms for IP address allocation.In“automatic allocation”,DHCP assigns a（本题）IP address to client.In“dynamic allocation”,DHCP assigns an IP address to a client for a limited period of time.In“manual allocation”,a client’s IP address is assigned by the network（ ）,and DHCP is used simply to convey the assigned address to the client.
A.permanent
B.dynamic
C.connection
D.session

[单选题]Most of the host operating system provides a way for a system administrator to manually configure the IP information needed by a host．Automated configuration methods, such as （ ） , are required to solve the problem．
A.Ipse
B.DHCP
C.PPTP
D.SOAP

[单选题]客户的网络连接形如： HostA----GE0/0--AR-1--S1/0-----WAN-----S1/0--AR-2--GE0/0----HostB 两台AR 路由器通过广域网实现互连，目前物理连接已经正常。AR-1 的接口S1/0 地址为3.3.3.1/30，AR-2 的接口S1/0 地址为3.3.3.2/30，现在在AR-1 上配置了如下三条静态路由： ip route-static 192.168.1.0 255.255.255.0 3.3.3.2 ip route-static 192.168.2.0 255.255.255.0 3.3.3.2 ip route-static 192.168.0.0 255.255.255.0 3.3.3.2 其中192.168.0.0/22 子网是主机HostB 所在的局域网段。那么如下描述哪些是正确的？( ) A.这三条路由都会被AR-2路由器学习到并写入AR-2 的路由表
A.只有第三条路由会被写入AR-1 的路由表
B.这三条路由可以被一条路由ip route-stati
C.192.168.0.0 255.255.252.0 3.3.3.2 代替
D.只有第一条路由会被写入AR-1 的路由表

[单选题]Warren Buffett,who will host Berkshire Hathaway's annual shareholders'meeting on May 3rd,is an icon of American capitalism.At 83,he also epitomizes a striking demographic（1）:for highly skilled people to go on working well into（2）was once thought to be old age.Across the rich world,well-educated people（3）work longer than the less-skilled.Some 65%o of American menaged 62-74 with a professional degree are in the（4）compared with 32%of men with only a high-school certificate.In the European Union the pattern is similar This（5）is part of a deepening divide between the well-educated（6）and the unskilled poor that is slicing（7）all age groups.Rapid innovation has raised the incomes of the highly skilled while（8）those of the unskilled.Those at the top are working longer hours each year than those at the bottom（9）the l1-qualified are extending their working lives,compared with those of less-educated people.The（10）for individuals and society,are profound The world is on the（11）rise in the number of old people,and they will live longer than ever efore.（12）the next 20 years the global population of those aged 65 or more will almost double from 600m to 1.1 billion The（13）of the 20th century,when greater longevity translated into more years in retirement（14）more years at work,has persuaded many observers that this shift will（15）slower economic growth and"secular stagnation",while the（16）ranks of pensioners will bust government budgets But the notion of a sharp division between the working young and the（17）old misses a new trend,the（18）gap between the skilled and the unskilled.Employment rates are falling among younger unskilled people,（19）older skilled folk are working longer.The divide is most extreme in America,where well-educated baby-boomers are（20）retirement while many less-skilled youn but overseas job markets and foreign government policies favor technology experts From a long-term perspective,it is a positive thing that more than 80 percent of those who pursue education overseas return to China after completing their studies and contribute to the country's economy But the notion of a sharp division between the working young and the（17）old misses a new trend,the（18）gap between the skilled and the unskilled.Employment rates are falling among younger unskilled people,（19）older skilled folk are working longer.The divide is most extreme in America,where well-educated baby-boomers are（20）retirement while many less-skilled younger people have dropped out of the workforce.（19）选？
A.since
B.before
C.whereas
D.although