[单项选择]Both preservationists and conservationists are termed as environmentalists largely because ___________.

[判断题]防火墙只用于对I错误ter错误et的连接。
A.正确
B.错误

[判断题]SMTP协议是I错误ter错误et上基于TCP/IP应用层协议，适用于主机之间电子邮件交换。
A.正确
B.错误

[判断题]电子邮件服务是I错误ter错误et网络为用户提供的一种最基本的、最重要的服务之一。
A.正确
B.错误

[判断题]每台上网的主机都有自己独特的I错误ter错误et 地址，这种地址一般有一种形式，即名称。
A.正确
B.错误

[单项选择]Rene Coty and Charles Deschanel were both interested in ______.


A. better quality in production
B. increasing quantity in production
C. having the government raise tariffs on foreign imports
D. eliminating unions in France

[单项选择]What problem is facing both developing and industrial nations
A. How to achieve literacy in their own countries.
B. How the environment can be changed to suit the people.
C. What methods of producing social and economic development can be found.
D. What ways of encouraging literacy as part of national development are possibl

[单项选择]Both sides have virtually done nothing to maintain the lasting peace.
A. 双方均未就维持持久和平作出实质性努力。
B. 为了维持持久和平，双方实质上什么也没有做。
C. 实际上不是双方都做了维持永久和平的事情。
D. 双方均未就维持过去的和平作出实际努力。

[单项选择]Jack's parents were both farmers.

[单项选择]

Both bus and tree topologies are characterized by the use of multipoint(1)．For the bus,all stations attach,through appropriate hardware(2) known as a tap,directly to a linear transmission medium, or bus. Full-duplex operation between the station and the tap allows data to be transmitted onto the bus and received from the(3).Atransmission from any station propagates the length of the medium in both directions and can be received by all other(4).At each end ofthe bus is a(5),which absorbs any signal, removing it from the bus．

空白（1）处应选择（）
A. medium
B. connection
C. token
D. resource

[单项选择]Why does the author mention both Boston and Chicago


A. To demonstrate positive and negative effects of growth.
B. To exemplify cities with and without mass transportation.
C. To show mass transportation changed many cities.
D. To contrast their rate of growt

[单项选择]Sensors and hollowed-out headrests are both designed, by ______.


A. men
B. women
C. Volvo designers
D. Volvo women designers

[单项选择]Both the British and the American models have influenced the basic structure of ______.


A. Australia government
B. New Zealand government
C. Japanese government
D. Irish government

[单项选择]With the debate only days away, both presidential campaigns sought to reinforce negative images of their_________.


A. rivals
B. matches
C. counterparts
D. opponents

[单项选择]

The API changes should provide both source and binary (71)for programs written to the original API. That is, existing program binaries should continue to operate when run on a system supporting the new API, In addition, existing (72) that are re-compiled and run on a system supporting the new API should continue to operate. Simply put, the API(73) for multicast receivers that specify source filters should not break existing programs, The changes to the API should be as small as possible in order to simplify the task of converting existing (74)receiver applications to use source filters. Applications should be able to detect when the new(75)filter APls are unavailable(e.g., calls fail with the ENOTSUPP error) and react gracefully(e.g., revert to old non-source-filter API or display a meaningful error message to the user).

空白处（71）应选择（）
A. capability
B. compatibility
C. labiality
D. reliability

[判断题]在I错误ter错误et域名解析中，通过域名查找相应的IP地址，叫做逆向解析；通过IP地址查找对应的域名，叫做正向解析。
A.正确
B.错误