题型:问答题 简答题 . He made _____ known to his friends that he didn’t want to enter politics. A.thatB.itC.himselfD.him 查看答案
题型:问答题 简答题 探放老空水、陷落柱水和钻孔水时,探水钻孔成组布设,并在巷道前方的水平面和竖直面内呈扇形。钻孔终孔位置以满足平距()m为准,厚煤层内各孔终孔的垂距不得超过1.5m。A、3B、5C、7D、10 查看答案