问题
单项选择题
ST1-600型闸调器，在试验台试验时，应将制动缸压力调整到（）。
A、250kPa
B、300kPa
C、350kPa
D、400kPa
答案
参考答案：B
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ST1-600型闸调器，在试验台试验时，应将制动缸压力调整到（）。
A、250kPa
B、300kPa
C、350kPa
D、400kPa
参考答案：B
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