Clouds that form as small white flakes or scaly globular masses covering either small or large portions of the sky are（）.

ANB指令是（）指令，ORB是（）指令，与and、or指令不同。

Project（71）is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

● Project（71）is an uncertain event or condition that, if it occurs, has a positive or a negative effect on at least one project objective, such as time, cost, scope, or quality.（71）

OR指令的作用是: 。( )

可以在（）阶段采用Make-or-buy决策分析。

爱立信2202设备四条总线是什么？（）

目前我省使用的爱立信Maxite是由（）、（）、（）三部分组成。

A mark or place at which a vessel comes under obligatory entry，transit，or escort procedure is know as（）.

Damage to cargo caused by fumes or vapors from liquids，gases，or solids is known as（）.

F1系列PLC—OR指令表示（）。