【单选题】Scientists are warning that ________ emissions of carbon (碳排放) are cut, we could be heading for an environmental disaster.
【简答题】A.conjunction B.ornament C.expenditure D.convenience
【单选题】另类投资可以采用( )策略,以实现以小博大的投资目的。
【判断题】精确度指精密度与正确度的综合,它既描述数据的重复性程度,又表示与真值的接近程度,其反映了综合误差的大小程度。()
【简答题】More and more trees are being cut down, and it’s time for us to stop this crime ____nature.