题型:判断题 眼力大比拼!找出错误并在横线上改正。( ) 1. Can you help washing the dishes? A B C( ) 2. My family live in a house. A B C( ) 3. Let's put a circle at usually. A B C( ) 4. How many class are there in your school? A B C 查看答案
题型:判断题 关于浸出液的蒸发方式叙述错误的是()A.分为自然蒸发和沸腾蒸发B.是一种挥发性溶剂与不挥发性溶质分离的过程C.沸腾蒸发是指在沸点温度下进行的蒸发D.自然蒸发是指在低于沸点温度下进行的蒸发E.沸腾蒸发的效率低于自然蒸发 查看答案