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bob的电子邮件转发到wanglong@sina.com。
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转发邮件时,在阅读邮件窗体工具栏上,单击“转发”后,在“收件人”框中()。
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Alice 发给 Bob 一个经 Alice 签名的文件,Bob 可以通过(16)验证该文件来源的合法性。A.Alice 的公钥
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Bob和Tom住在同一间大学宿舍里,Bob对大声放音乐的评价为100美元。Tom对安静的评价为150美元。以下哪一种表述是正确的()。A、Bob继续放音乐是有效率的B、只要Tom有安静的产权,Bob停止大声放音乐就是有效率的C、只要Bob有大声放音乐的产权,Bob停止大声放音乐就是有效率的D、无论谁有声音大小的产权,Bob停止大声放音乐都是有效率的
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评估以下语句: ALTER USER bob IDENTIFIEDBY jim; 下列有关此语句的执行结果的表述中哪个是正确的?()A、会为用户BOB分配一个新口令。B、将根据用户BOB的概要文件创建一个新用户JIM。C、将授予用户BOB与用户JIM相同的权限。D、将重命名用户BOB、此用户将作为JIM访问数据库。
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若Bob给Alice发送一封邮件,并想让Alice确信邮件是由Bob发出的,则Bob应该选用哪种密钥对邮件加密?()A、Alice的公钥B、Alice的私钥C、Bob的公钥D、Bob的私钥
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Bob和Tom住在同一间大学宿舍里,Bob对大声放音乐的评价为100美元。Tom对安静的评价为150美元。如果Bob有大声放音乐的权利,而且,如果没有交易成本,下列哪一种关于外部性问题有效解决的表述是正确的()。A、Bob将支付Tom100美元,而且,Bob将停止大声放音乐B、Tom对Bob的支付在100——150美元之间,Bob将停止大声放音乐C、Bob将支付Tom150美元,Bob继续大声放音乐D、Tom对Bob的支付在100——150美元之间,Bob将继续大声放音乐
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A UNIX user named Bob wants to replace his chess program with a new one, but he is hot sure where the old one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command: java -classpath /test:/home/bob/downloads/* .jar games.Chess Bob‟s CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/* .jar What is a possible location for the Chess.class file?() A、 /test/Chess.classB、 /home/bob/Chess.classC、 /test/games/Chess.classD、 /usr/lib/games/Chess.classE、 /home/bob/games/Chess.classF、 inside jarfile /opt/java/lib/Games.jar (with a correct manifest)G、 inside jarfile /home/bob/downloads/Games.jar (with a correct manifest)
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A UNIX user named Bob wants to replace his chess program with a new one, but he is not sure where theold one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using thecommand: java -classpath /test:/home/bob/downloads/*.jar games. Chess Bob’s CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar What is a possible location for the Chess.class file?()A、/test/Chess.classB、/home/bob/Chess.classC、/test/games/Chess.classD、/usr/lib/games/Chess.classE、/home/bob/games/Chess.class
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A UNIX user named Bob wants to replace his chess program with a new one, but he is not sure where theold one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command: java -classpath /test:/home/bob/downloads/*.jar games.Chess Bob’s CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar What is a possible location for the Chess.class file?()A、/test/Chess.classB、/home/bob/Chess.classC、/test/games/Chess.classD、/usr/lib/games/Chess.classE、/home/bob/games/Chess.class
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转发邮件时,在阅读邮件窗体工具栏上,单击“转发”后,在“收件人”框中()。A、手动输入要将邮件转发到的电子邮件地址B、自动填入要将邮件转发到的电子邮件地址C、自动填入所有联系人的地址D、自动填入原始邮件的发件人地址
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单选题您需要授予用户BOB对“雇员”表的SELECT权限。您希望允许BOB将此权限授予其他用户。应使用以下哪条语句()A
GRANT SELECT ON雇员TO bob WITH GRANT OPTIONB
GRANT SELECT ON雇员TO PUBLIC WITH GRANT OPTIONC
GRANT SELECT ON雇员TO bobD
GRANT SELECT ON雇员TO bob WITH AD MIN OPTION
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单选题Bob和Tom住在同一间大学宿舍里,Bob对大声放音乐的评价为100美元。Tom对安静的评价为150美元。如果Bob有大声放音乐的权利,而且,如果没有交易成本,下列哪一种关于外部性问题有效解决的表述是正确的()。A
Bob将支付Tom100美元,而且,Bob将停止大声放音乐B
Tom对Bob的支付在100——150美元之间,Bob将停止大声放音乐C
Bob将支付Tom150美元,Bob继续大声放音乐D
Tom对Bob的支付在100——150美元之间,Bob将继续大声放音乐
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单选题A UNIX user named Bob wants to replace his chess program with a new one, but he is not sure where theold one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command: java -classpath /test:/home/bob/downloads/*.jar games.Chess Bob’s CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar What is a possible location for the Chess.class file?()A
/test/Chess.classB
/home/bob/Chess.classC
/test/games/Chess.classD
/usr/lib/games/Chess.classE
/home/bob/games/Chess.class
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单选题电子邮件是由用户在计算机上使用电子邮件软件包()A
直接发到接收者计算机的指定磁盘目录中B
直接发到接收者注册的POP3服务器指定的电子信箱中C
通过SMTP服务器发到接收者计算机中指定的磁盘目录中D
通过SMTP服务器发到接收者注册的POP3服务器指定的电子信箱中
考题
单选题A UNIX user named Bob wants to replace his chess program with a new one, but he is not sure where theold one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using thecommand: java -classpath /test:/home/bob/downloads/*.jar games. Chess Bob’s CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar What is a possible location for the Chess.class file?()A
/test/Chess.classB
/home/bob/Chess.classC
/test/games/Chess.classD
/usr/lib/games/Chess.classE
/home/bob/games/Chess.class
考题
单选题A UNIX user named Bob wants to replace his chess program with a new one, but he is hot sure where the old one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command: java -classpath /test:/home/bob/downloads/* .jar games.Chess Bob‟s CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/* .jar What is a possible location for the Chess.class file?()A
/test/Chess.classB
/home/bob/Chess.classC
/test/games/Chess.classD
/usr/lib/games/Chess.classE
/home/bob/games/Chess.classF
inside jarfile /opt/java/lib/Games.jar (with a correct manifest)G
inside jarfile /home/bob/downloads/Games.jar (with a correct manifest)
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