如图，△ABC中，AB=AC，AD⊥BC，以下结论中不正确的是（）

题干

A：△ABD≌△ACD

B：D为BC的中点

C：∠B=60°

D：AD是△ABC的角平分线

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C

请根据对话内容，从下面方框中所给的选项中选出合适的句子补全对话。其中有一项是多余的。请把正确的代号填到横线上。

A: Good morning, Doctor.

B: Good morning, young man. ____

A: I've got a headache and a cough. I'm sure there is something wrong with me.

B: ____

A: Since last week.

B: ____

A: I'm feeling even worse now.

B: Don't worry. Let me check your body. Oh, you feel a little hot. ____

A: Yes, I have a fever.

B: I'm afraid you have caught a cold. ____ Have a good rest and you'll feel better soon.

A: Thank you, Doctor.

B: That's all right.

A. How are you feeling now?

B. Do you often eat fast food?

C. Have you taken your temperature?

D. What’s the matter with you?

E. Take the medicine three times a day.

F. How long have you been like this?