下图表示我国四个省级行政区，据此回答下面试题。

对图中省份的说法正确的是   

A．甲、乙两省均位于地势第一级阶梯        B．丙、丁两省以河流为界

C.甲、乙两省以河流为界                    D．丙、丁两省均位于地势第二级阶梯

对在甲、乙两省旅行常见地貌景观叙述正确的是

   A．远看成山，近看成川         B．地表崎岖，谷深坡陡

   C沟壑纵横，支离破碎          D．平原为主，丘陵间杂

．读下图，箭头表示人口移动的状况，回答有关A、B两图所表示的现象分别是（    ）今日必

A．逆城市化    郊区城市化       B．逆城市化    城市化

C．郊区城市化  逆城市化         D．城市化      郊区城市化

下列关于无霜期的叙述，正确的是

  A．同一海拔，纬度越高无霜期越长    B.同一纬度，海拔越低无霜期越短

  C. 同一山地，阳坡无霜期短于阴坡    D. 同一地段．开阔地无霜期长于低洼地

下列国家轮廓图3中，河流名称错误的是（    ）

图3

A、印度河   B、尼罗河    C、密西西比河    D、亚马孙河

下表代表寒潮、酸雨、水土流失、土地荒漠化对四个省区的危害程度(下表代表寒潮、酸雨、水土流失、土地荒漠化对四个省区的危害程度(十号越多代表危害程度越高)，回答下面试题：

—I really like the modern digital camera you lent me last week.

—　______　　　.

—And thank you very much for letting me keep it so long.

A. I’m glad you like it     B. Don’t mention it

C. I hope you like it         D. That’s all right。

—___________ makes her different from the other students?

—Diligence, I think.

A. How is it that          B. How is that     

C. What is it that             D. What is that

Today impressionist paintings are accepted as the beginning of ____ we call “modern art”.

A. which        B. what     C. that D. how

I found him sitting in his chair，completely   ____    a magazine．

A．absorbing     B．being absorbed in

C．absorbed in  D．absorbing in

—I did not know you were good friends.

  —You__________. I have known her since she moved here. You were abroad then.

 A. may have       B. needn’t have       C. couldn’t have      D. must have