【单选题】It’s just()bite、There is nothing to worry about.
【简答题】It’s just a small, white envelope stuck among the branches of our Christmas tree. No name, no address. It has peeked through the branches of our tree for the past 10 years. It all began because my hus...
【单选题】It’s just a petty mistake.
【简答题】标签 ( ) 表示它所包围的内容是无序列表标签 , 而 ( ) 表示有序标签。
【简答题】Why did humans evolve to walk upright? Perhaps because it’s just plain easier. Make that “energetically less costly”, scientifically speaking. Bipedalism—walking on two feet, is one of the defining ch...
【单选题】It’s just struck midnight. It’s high time we _____to bed.
【单选题】—I think I should wear a dress instead of this jeans. —It’s just a small informal party, so you don’t have to ___________.
【单选题】曲面x2+2y2+3z2=6,在点(1,1,1)处的法线方程为( )。
【多选题】植物化学保护学是研究科学地应用农药来防治()、线虫、鼠类等有害生物,保护农、林业生产的一门科学
【单选题】旋转曲面3x2+3y2-z2=1的转轴与母线分别为( )