读后縷写【参考范文】We made up our minds to save the nurse with him together.We were faced with falling rubble from time to time. The trappednurse was still alive. We focused our efforts on removing thebricks and the rubble that trapped her body. Once she was freethe doctor guided us through the remains safely. He kept a perfectly caim tone throughout, which smoothed me much. My hearleaped with joy as we successfully walked out of the building. Althe survivors' gratitude was profound and boundless.Later in the afternoon I had time to Look around, and satthe destroyeed building. My beautifui workplace now lay beyonrecognition. The only thing that remained was broken wallsmidst the dim dust. I felt a weignt on my chest as the sednswelled inside. The doctor stood beside me and said with a fsmile,"We should be happy for those who survived the eartquake."I smiled back as the wind danced around us, and Ilucky to be alive.

7c【解析】本题考查物质结构与性质基础知识。金刚石与碳化硅都是原子晶体,结构相似,因碳原子半径小八于硅原子,故金刚石的共价键键长比碳化硅的短,键长越短,鍵能越大,则金刚石的硬度大于碳化硅,A错误;PH3和NH3分子中均含有孤电子对,N元素的电负性大于P,故N原子对孤电子对的作用力比P原子强,则NH2提供孤电子对的能力弱于PH3,B错误;BeO的晶格能大于MgO,可推测BeCO3的分解湿度低于MgCO3,即相比于MgCOeCO3更易分解为氧化物:C正确:[Cr(H2O)4Cl2]C外界只有个C!,则向1mol[Cr(H2O)4Cl2]O中加入足量AgNO3溶液,可以得到1 mol agcl沉淀,错误。

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