A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px; TEXT-DECORATION: none">必须做好安置仪器，粗略整平，瞄准标尺，检查补偿器是否正常，读数记录</span>
B、<span style="FONT-FAMILY: 宋体">必须做好安置仪器，瞄准标尺，精确整平，读数记录</span> </p><p></p>
C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">必须做好安置仪器，粗略整平，瞄准标尺，精确整平，读数记录</span>