题目

听下面一段长对话, 回答以下小题。【1】How does the woman sound?A.Excited. B.Annoyed. C.Stressed.【2】What do the speakers want to do?A.Clean the ships.B.Take pictures of the ships.C.Read stories on the ships. 答案：【答案】【1】A【2】B【解析】【原文】W: We’re nearly there. Will we be allowed to visit all the ships, Wang? The space station and aircraft equipment, as well as the others?M: Yes, I expect so. We shall see most of them. W: Good! Visiting spaceships is always exciting. But remember, we’ve got work to do. We’ve got a story to write and photographs to take. M: Will we be allowed（6分）已知乳酸的结构简式为 。试回答：①乳酸分子中含有________和_________两种官能团（写名称）；②乳酸与足量金属钠反应的化学方程式为___________________；