问题
单项选择题
矿井标准分总分为（）分。
A、100
B、150
C、200
D、300
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
矿井标准分总分为（）分。
A、100
B、150
C、200
D、300
参考答案：C
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