题目

—What is her New Year's _____? —She's going to study a lot. A . exercise B . resolution C . job D . question 答案：B向盛有I2水溶液的试管中，再加四氯化碳振荡，静置后观察到的现象是(    )A．上层橙红色，下层接近无色B．均匀、透明、紫红色C．均匀、透明、无色D．上层接近无色，下层紫红色