题目

---Can you show me your headmaster's office? ---_____. But I don't know if he is in at the moment． A．Go ahead        B．You're welcome        C．Of course not        D．Sure 答案：D亚洲地形的显著特征是A．地势平坦，起伏不大B．以高原山地为主C．以丘陵为主D．以平原为主