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单选题
The air inlet section through which the air enters the compressor section includes items such as guide vanes, shrouds and cases.
A
A.进气道指空气进入压气机前所经过的部分，包括导向叶片、罩环和机匣。
B
B.空气进入压缩机部分的进气口部分包括导向叶片、护罩和箱子等项目。
C
C.空气进入压缩机部分的进气口部分包括导向叶片、横桅索和箱子等项目。
答案解析
正确答案：A
相关知识点：
进气部分含啥项，进哪的
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