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【单选题】
安装有“制动选择阀”的装载机，上下坡时，将制动选择阀手柄扳到不切断位置，当制动时（）。
A.
档位变换为空档
B.
档位保持不变
C.
档位变换为低档
D.
发动机油门变小
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】After the birth of my second child，I got a job at a restaurant.Having worked with an experienced 16for a few days，I was 17to wait tables on my own.All went 18that first week.When Saturday night came，I...
A.
repeated
B.
discovered
C.
corrected
D.
described