信息安全是一个整体概念,如果只强调终端,实际上是片面的。
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本质安全化原则只可以应用于设备、设施,不能应用于建设项目。
A. 正确
B. 错误
饮用酸奶可以提高人体对钙的吸收,但不可以提高人体对磷和铁的吸收。
A. 正确
B. 错误
使用绝缘电阻表测量时,摇动手柄的速度由慢变快,并保持在每分钟()左右。
A. 60r/min
B. 120r/min
C. 180r/min
D. 360r/mi
What is the minimum standard for making an eye splice in a wire to be used as cargo gear().
A. Make three tucks with full strands,remove half the wires from each strand,and make two more tucks
B. Make four tucks in each strand,cut away every other strand,and make two more tucks with each remaining strand
C. Make four tucks with each full strand
D. Make six tucks with each strand,removing a few wires from each strand as each additional tuck is made