问题
单项选择题
世界上最轻的固体是（）
A.气凝胶
B.锂
C.果冻
答案
参考答案：A
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世界上最轻的固体是（）
A.气凝胶
B.锂
C.果冻
参考答案：A
 As a young girl growing up in rural Alabama, I never understood why my mom spent so much time baking. And she always made my brother and me 36 her. A whole day every other week was devoted to making bread. It always made our small arms tired. Despite our best efforts, the flour dust always went everywhere. I 37 to be outside with my playmates, and never 38 my mom’s desire for quality family time with her children, at least when it came to spending it in the 39 . Years have gone by, and I have become a mother myself. I prefer to leave most of the cooking to my husband and he loves it. He’s quite 40 at doing it, too. On one occasion my husband was 41 dinner, and I was at the kitchen table going through the day’s mail when our little son, Cody, asked if he could help 42 . My husband said yes, and I sat there amused, watching them. “What are you doing?” I asked. “Helping dad cook.” he replied with a big 43 on his face. I thought back to those 44 when my mom asked me to help her bake bread, and I was 45 , but obeyed. Perhaps she was trying to create something more than just fresh bread—maybe a few lasting 46 . As I watched Cody do it with all his attention, I realized that he had 47 a lasting moment for me, a moment filled with a deep sense of family. I wanted to hold the moment and make it longer, and appreciate the memories my mom had given me years ago in her kitchen.
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