如图1所示，在O点安置经纬仪对A、B两方向采用测回法进行水平角观测，一测回的观测数据均注于图中，请你计算并选择正确的选项，填入到下面表1中。<div class="centerBox"><img alt="" src="/api/uploads/2020758/in-rich-contentcreated_at=1648640439"></div><div class="centerBox"><img alt="" src="/api/uploads/2020759/in-rich-contentcreated_at=1648640439"></div>
(1)(matching)
.70o06′12"

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