相似相溶原则
参考答案:
极性成分易溶于极性溶剂,亲脂性成分易溶于非极性溶剂。
The nurse is teaching parents how to reduce the spread of impetigo. The nurse should encourage parents to
A. teach children to cover mouths and noses when they sneeze.B. have their children immunized against impetigo.C. teach children the importance of proper hand washing.D. isolate the child with impetigo from other members of the family.
请选择某一事物,通过情境表达自己的思想感受。
原作:墙角的花!
你孤芳自赏时,
天地就小了。
仿写:________________________________________________