「（＋4）×（－3）」を計算せよ 中2なら秒で分かるかもしれないクイズ【数学・計算】（1/11 ページ） - ねとらぼ - ねとらぼ



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'A harbinger of what's to come:' NASA satellites show massive drop in global freshwater levels - Livescience.com
Venting Doesn't Reduce Anger, But Something Else Does, Study Shows - ScienceAlert

Fifty years after the discovery of Lucy, it’s time to ‘decolonise paleoanthropology’ says leading Ethiopian fossil expert – podcast - The Conversation
NASA is offering $3 million to those who can help solve this problem - The Daily Galaxy --Great Discoveries Channel