如何显示这样一个边框：上边框10像素、下边框5像素、左边框20像素、右边框1像素（）
A. border-width：10px5px20px1px
B. border-width：10px20px5px1px
C. border-width：5px20px10px1px
D. border-width：10px1px5px20px
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一般而言，程序控制的机器、程序控制的方法以及控制程序都应视为可获专利的主体。
A. 正确
B. 错误
What are three methods to reduce Mysql server exposure to remote connections?（）
A. Setting — skip-networking when remote connections are not required
B. Using the sql_mode=STRICT_SECURE after connections are established for encrypted communications
C. Setting specific GRANT privilege to limit remote authentication
D. Setting – mysql_secure_configuration to enable paranoid mode
E. Using SSL when transporting data over remote network
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