×
单选题
当节或子系统单元编号后面的主题单元编号(28-20-00)为零时，该信息适用于系统内的子系统。
A
When the section or subsystem element number is followed with zeros in the subject element number (28-20-00) , the information is applicable to subsystems within the system.
B
This information applies to subsystems of the system when the topic number (28-20-00) following the section or subsystem part number is zero.
C
This information is suitable to subsystems in the system when the topic unit number (28-20-00) is followed by the section or subsystem unit number with zeros.
答案解析
正确答案：A
相关知识点：
主题编号为零信息适用范围
相关题目
单选题
Database synchronization is in progress.
单选题
Install the valve and the correct gasket.
单选题
Make sure that the latch is fully engaged.
单选题
Hold the cylinder tightly.
单选题
Examine the seal for defects.
单选题
The control unit is installed aft of the cockpit.
单选题
Install the manifold.
单选题
Documents must be readily revisable.
单选题
Deactivation/Reactivation procedures for circuits, systems, units, etc., shall be included.
单选题
The user of the schematic diagram is the pilot.
