2022 英语周报 七年级 外研综合 30答案

第二节this time, Lewis was so distracted by the UFO.That's when the object entered the last cloud. From thereit was nothing but open sky. "When it appeared, my lifechanged, "Lewis says. "There against the richness of theblue sky was a silvery shape that seemed to have arms andlegs! It was so beautiful to look at. At the same time, ithad the appearance of metal. It looked like some kind ofship with a strange design. The best way I could describe itis that it looked like a silver tool in the design of thestickman children draw. It was huge, moving fasst anmade no noise.As it sailed overhead, some of the arms and legsould move up and down, giving the impression of beingalive!"He says. "It made a couple of rolls, reflecting thesun in every direction just beautiful! Slowly it landed onthe land. I imagined extraterrestrials would come out, butthat didn't happen. Then it began to rise and move fartherand farther away. As it started to fade away from myview, I found myself short of breath and with tearsrunning down my cheeks. It had that much of an effect onme. I began thinking maybe that's what an angel lookslike

11.B【解析】未指明温度,∧错误;根据电荷守恒和物料守恒可得质子守恒B正确;根据Kw的计算公式可知(OH-)增大.C错误;Na2S是能水解的盐.能促进水的电离,D错误。故选B

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