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单项选择题(每题1分,共10分)e¸Ì?¦zA^Bbbs.3c3t.com¢²¼zËË â1.隧道施工是指修建(e¸Ì?¦zA^Bbbs.3c3t.com¢²¼zËË â
)。e¸Ì?¦zA^Bbbs.3c3t.com¢²¼zËË âA.隧道及地下洞室的施工方法、施工技术和施工管理的总称;e¸Ì?¦zA^Bbbs.3c3t.com¢²¼zËË âB.地下洞室及巷道;e¸Ì?¦zA^Bbbs.3c3t.com¢²¼zËË âC.躲避洞;e¸Ì?¦zA^Bbbs.3c3t.com¢²¼zËË âD.地下交通工程。e¸Ì?¦zA^Bbbs.3c3t.com¢²¼zËË â2.控制测量的精度应以中误差衡量,最大误差(极限误差)规定为中误差的(e¸Ì?¦zA^Bbbs.3c3t.com¢²¼zËË â
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A.1倍洞跨e¸Ì?¦zA^Bbbs.3c3t.com¢²¼zËË â
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