向盛有氢氧化钠溶液的试管中加入一定量白色的硫酸铜固体粉末，恰好完全反应，过滤，得到溶质质量分数为14.2%的无色溶液10g．请计算：
小肠的结构特点中，能扩大消化、吸收面积的是（ ）
①小肠很长②小肠绒毛③肠腺④皱襞⑤绒毛内有毛细血管⑥绒毛内有毛细淋巴管．
读“气温曲线和降水量月份分配图”，回答问题。
阅读理解。
Hello! My nameis Alice. There are seven people in my family. My grandfather and grandmotherare in America. My parents are English teachers in China. I have two brothers.They are twins. We are students in the same school. I am in Grade One. They arein Grade Three.
①甲、乙两个水杯中，盛有热水的是____；
②该实验说明分子热运动的剧烈程度与____有关．
