诊断疾病的步骤包括搜集资料、分析综合资料及形成印象、验证或修正诊断3个步骤。
参考答案：对
根据下面对话中的情景，在每个空白处填入一个适当的句子，使对话恢复完整。
A: Hi, Linda! I'm going to have a birthday party on Saturday eve- ning. 1 ?
B: Oh,I'm sorry. I can't. I'm going to visit my grandfather on Saturday evening.
A: 2
B: I have to learn French on Sunday.
A: Oh. 3 ?
B: Well, Friday is free.
A: Friday? That's tomorrow! OK. We can have it then. Can you ask Alice to join us?
B: Sure. 4 ?
A: Near our school gate at half past five.
B: Great! 5
A: Bye!
中药中某些化学成分毒性很大。（）
