A:①④③②
B:③④①②
C:②①④③
D:②④①③
读“东北三省”图,回答下列问题:
—I am really struck by your spoken English. You speak so fluently. Have you been abroad?
—Yes. I ______ in London for two years.
图中关于图中地形及成因判断正确的是( )