【判断题】用移液管吸取溶液时,应该用右手拿洗耳球、左手拿移液管,左手食指按住移液管上口。( )
【简答题】and real suddenly dream be around decide color friend speak Last night I had a wonderful dream. I 66 that I turned into a good swimmer. In my dream, the weather 67 fine and I came to a ni...
【简答题】I often dream of a teacher.
【单选题】I dream of being a writer. But I am afraid maybe it is just a pipe dream. The underlined part means