根据句意及首字母提示完成单词。(1)S____ is my aunt, Ms Jones.(2)Your pencil is h ____. His pencil is over there.(3)Is that her family p____ ? It's very nice.(4)Mr Green is not my u____ . He is my father.(5)This is Mrs Brown's d____ , Gina.
用分子的观点解释:
(1)在酒精挥发和酒精燃烧过程中,酒精分子的变化有何不同?
(2)水在夏天比冬天蒸发得快.