下列关于压力和压强的说法中，正确的是（　　）

   Years ago, I lived in a building in a large city. The building next door was only a few feet away from mine. There was a woman who lived there, whom I had never met, yet I could see her seated by her window each afternoon, sewing(缝纫)or reading.
   After several months had gone by, I began to notice that her window was dirty. Everything was unclear through the dirty window. I would say to myself, “I wonder why that woman doesn’t wash her window. It really looks terrible.”
   One bright morning I decided to clean my flat, including washing the window inside. Late in the afternoon when I finished the cleaning, I sat down by the window with a cup of coffee for a rest. What a surprise! Across the way, the woman sitting by her window was clearly visible(可见的). Her window was clean!
   Then it dawned on me. I had been criticizing(批评)her dirty window, but all the time I was watching hers through my own dirty window.
That was quite an important lesson for me. How often had I looked at and criticized others through the dirty window of my heart, through my own shortcomings(缺点)? Since then, whenever I wanted to judge(评判)someone, I asked myself first, “Am I looking at him through my own dirty window?” Then I try to clean the window of my own world so that I may see the world about me more clearly.

过点$M\left(1,1\right)$且与曲线$y=x^3+1$相切的直线方程是(      )

分子式为N₄的氮元素同素异形体，结构等同于白磷，N4中每个原子满足最外层8e^﹣结构．则lmolN₄中含有 ____对共用电子对．已知NH₃、﹣NH₂、​一定条件下都可以和H⁺结合．则N₄和足量的H⁺反应生成的粒子的化学式为 ____