The UN stresses good _______________ anditsimportance in peacekeeping because it underpins other competencies.
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1.The 8 UN Core Competenciesare communication, _____,Planning and organization, accountability, _____, ______, commitment to continuous learningand technological awareness.
空场采矿法属于二步骤回采的采矿方法
A. 对
B. 错
空场法在回采过程中，它是把矿块划分为矿房和矿柱两部分来开采，先采矿柱，后采矿房。
A. 对
B. 错
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