1756. There are a number of factors that can affect the magnitude of impedence

There are a lot of factors where to affect the magnitude of impedence.

There are a lot of factors as if affecting the magnitude of impedence.

There are a lot of factors affecting the magnitude of impedence.

正确答案：C

设备系统操作理论翻译

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1607. Polish the surface until it is very shiny

1606. Replace the insulation blankets that show chafing

1605. Align the drill until it is perpendicular to the surface

1604. Safety the clamp block across control lever forks with safety wires

1603. Make sure that the hydraulic fluid is clean

1602. Hydraulic fluid is dangerous for your skin

1601. It is not permitted to use alternative materials

1600. 在基本发动机的外形内,用来补充发动机外部其他已定义系统的功能。

1599. 在进近、着陆和滑行过程中提供引导的部分系统。包括航向道、下滑道、ILS、马赫信标、目视指引器、地面引导系统等。

1598. The manufacturer may have the option of including wiring diagrams in this Chapter, Chapter 91, or establish a separate Wiring Diagram Manual