地理学的基本研究方法有描述、____和____。

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问题填空题

答案

参考答案：比较解释

单项选择题

We have ( ) a number of our customers in this area and ninny of them take an interest in your products.

A. contacted
B. contacted with
C. been contacted with
D. in contact with

问答题

甲、乙为邻居，甲家中有一幅古画，自称乃唐伯虎的真迹，但从未经过专家鉴定。请根据题设回答下列问题：