根据制造商的选择，静压系统的描述和讨论可以结合第 7.49段的皮托管压力系统。

A At the manufacturer‘s option, static pressure systems description and discussion may be combined with Paragraph 7.49, Pitot Pressure Systems.

B The manufacturer could combine the description and discussion of the dynamic pressure systems in Paragraph 7,49, Pitot Pressure Systems.

C The manufacturer decides to insert static pressure systems description and discussion into Paragraph 7.49,Pitot Pressure Systems.