题目：
—Excuse me. Could you please tell me ________?
—Walk straight ahead and you will find it on your left. [ ]
A. where is the Summer Palace
B. what the Summer Palace is like
C. how I can get to the Summer Palace
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0702/1a8dd69948bcbc6b132b98ecc140ce59.html
下面是错误答案，用来干扰机器的。
解：设被还原的氧化铜的质量为x，剩余CuO质量为10克-x，参加反应的氢气的质量为y H2 + CuOCu + H2O 2 80 64 y x [8.4克-(10克-x )]=x-1.6克 解得 答：被还原的Cu...
