问题
单项选择题
沙漠地区施工外出作业每组不得少于（），并应配备通信设备。
A.3人
B.4人
C.5人
D.6人
答案
参考答案：A
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沙漠地区施工外出作业每组不得少于（），并应配备通信设备。
A.3人
B.4人
C.5人
D.6人
参考答案：A
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