爆破员应按爆破设计说明书规定进行操作，不应自行改变（）。
A. 装药量或填塞长度
B. 装药量
C. 填塞长度
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对于线条稿，为避免印刷时出现明显的锯齿，扫描分辨率一般设为（）dpi以上。
A. 175
B. 200
C. 1200
D. 1024
从分析投影入手，就可以想象出零件各部分的结构形状和它们的相对位置，进而想象出零件完整的形象来。
A. 正确
B. 错误
You are designing a strategy for migrating the UNIX user accounts to Active Directory. Which three actions should you perform？（）
A. Import the user accounts as inetOrgPerson objects.
B. Import the user accounts into Active Directory by using the Ldifde command-line tool.
C. Export all user accounts from the UNIX servers to a text file.
D. Export all user accounts and their passwords from the UNIX servers to a text file. Encrypt this file to achieve extra security.
E. Assign random passwords to each user object， and securely distribute the password to the users.
F. Create the same strong password for each user object， and require users to change their passwords at first logon.
G. Instruct users to use the same name and password as they used on the UNIX servers.
事故发生后，要做到事故原因未查明不放过；当事人未受到处理不放过；当事人未受到教育不放过；事故单位未制定整改措施不放过。这就是安全管理的“四不放过原则”。
A. 正确
B. 错误
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