問題詳情
24. If we _______ now to protect the environment, we'll live to regret it.
(A)hadn't acted
(B) haven't acted
(C)don't act
(D)won't act
(A)hadn't acted
(B) haven't acted
(C)don't act
(D)won't act
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
內容推薦
- 29 下列关于Windows2003系统下DHCP服务器参数的描述中，错误的是(A) 作用域是网络上IP地址的连续范围(B) 排除是从作用域内排除的有限IP地址序列(C) 保留不可以使用被排出的IP地
- 38 下列关于漏洞扫描技术和工具的描述中，错误的是(A) 主动扫描工作方式类似于IDS(B) CVE为每个漏洞确定了唯一的名称和标准化的描述(C) X-Scanner采用多线程方式对指定IP地址段进行
- 20将Catalyst 6500交换机的设备管理地址设置为2019/24,缺省网关的IP地址为2011，正确的配置语句是(A)set interface vlan1 2
- Try not to cough more than you can _______ since it may cause problems to your lungs.(A)check (B
- India attained _______ independence in 1947, after _______ long struggle.(A)不填; a (B) the; a (C)
- 28 下列关于Windows2003系统下DNS服务器参数的描述中，错误的是(A) 安装DNS服务时，根服务器被自动加入到系统中(B) 反向查找区域用于将IP地址解析为域名(C) 主机记录的TTL是该
- 37 Cisco路由器上使用团体字pub向管理站pub.abc.edu.cn发送自陷消息，正确的snmp配置语句是(A) snmp-server enable traps snmp-server
- 19在Cisco Catalyst 3548以太网交换机上建立一个名为lib105的VLAN，正确的配置是(A) Switch-3548#vlan 1 name lib Switch-354
- They might just have a place _______ on the writing course — why don't you give it a try?(A
- (A)the last moment, Tom decided to _______ a new character to make the story seem more likely.(A
內容推薦
- 39 在一台主机上涌浏览器无法访问到域名为www.abc.edu.cn的网站，并且在这台主机上执行tracert命令时有如下信息Tracing route to www.abc. edu.cn[202
- 下列关于Windows2003系统下WWW服务器配置的描述中，错误的是(A) 设置默认文档后使用浏览器访问网站时能够自动打开网页(B) 网站选项可设置网站的标识，并可启用日志记录(C) 目录安全选
- "You can't judge a book by its cover," _______.(A)as the saying goes old (B) goes
- 40 攻击者使用无效IP地址，利用TCP连接的三次握手过程，连续发送会话请求，使受害主机处于开放会话的请求之中，直至连接超时，最终因耗尽资源而停止响应。这种攻击被称为(A) DNS欺骗攻击 (B)DD
- 下列关于Serv_U FTP服务器配置的描述中，错误的是(A) 配置服务器域名时，可以使用域名或其它描述(B) 配置服务器IP地址时，服务器有多个IP地址需分别添加(C) 配置服务器域端口号时，
- It was a real race _______ time to get the project done. Luckily, we made it.(A)over (B) by (C)f
- Police have found _______ appears to be the lost ancient statue.(A)which (B) where (C)how (D)wha
- 1意思的轉達及瞭解，稱(A)溝通(B)訊息(C)認知(D)了解
- 17．ab是长为l的均匀带电细杆，PP2是位于ab所在直线上的两点，位置如图所示。 ab上电荷产生的静电场在P1处的场强大小为E1，在P2处的场强大小为F2。则以下说法正确的是 (A)两处的电场方
- When I first met (B)yan I didn't like him, but I _______ my mind.(A)have changed (B) change
- The sunlight is white and blinding, _______ hard-edged shadows on the ground.(A)throwing (B) bei
- I went to a group activity, “Sensitivity Sunday”, which was to make us more 36 the problems faced by
- What can we learn about the author?(A)She rarely misses a good deal.(B) She seldom makes a c
- What is the author’s attitude to 58% of readers?(A)Favorable.(B) Uncaring(C)Doubtful(D)Frien
- What does the author do?(A)She's a teacher.(B) She's a housewife.(C)She's a m
- 1)系统软件一般包括Ⅰ.服务性程序 Ⅱ.语言处理程序Ⅲ.操作系统 Ⅳ.数据库管理系统 (A) Ⅰ、Ⅱ和Ⅲ (B) Ⅰ、Ⅲ和Ⅳ (C) Ⅱ、Ⅲ和Ⅳ (D) 全部
- What does the author want to tell us?(A)How to expose bad tricks.(B) How to reserve airline
- DThe National GalleryDescription:The National Gallery is the (B)itish national art museum built on t
- 下列讀音何組正確?(A)『否』定 / 『否』極泰來(B)彷『彿』/『拂』袖(C)容『易』/血『液』(D)『卅』年/廣『州』
- 69．Where are Leonardo da Vinci’s works shown?(A)In the East Wing.(B)In the main West Wing.(C)In
- BThe baby is just one day old and has not yet left hospital. She is quiet but alert (警觉)。Twenty cent
- 請說明青少年在皮亞傑(J. Piaget)形式運思期的認知發展特徵。
- (A)place (B) action (C)play (D)effect
- 70．Which underground station is closest to the National Gallery?(A)Piccadilly Circus.(B)Leiceste
- (B)bies are sensitive to the change in______.(A)the size of cards.(B) the colour of pictures.