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单选题
The anti-icing system of the engine eliminates and prevents ice formation by bleed air in all parts of the engine (excluding power cowling), and is inclusive of several components such as valves, plumbing, regulators, etc.
A
发动机防冰系统能消除和防止因引气产生的发动机部件结冰（不包括整流罩），包含活门、管路、调节器等零件。
B
发动机防冰系统包括活门、管路、调节器等部件，能通过引气消除和预防发动机所有部件结冰（不包括整流罩）。
C
发动机防冰系统是用于消除和防止发动机所有部件结冰的系统部分（不包括整流罩），包括活门、管路、调节器等项目。
答案解析
正确答案：C
相关知识点：
发动机防冰系统部件要牢记
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