例：If I were in your position，I would pay close attention.
→Were I in your position，I would pay close attention.
Our teacher says reading in the sun isn’t good _______ our eyes.
两颗卫星同时运行，每隔九天可以覆盖地球一遍，说明遥感技术
已知-25a2mb和7b3-na4是同类项，则m+n的值是（）
The teacher won't write ________ chalk in the future.
某种彩票的中奖机会是1%，下列说法正确的是( )
