新编四级听力练习 第266期

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Passage Three
32.
A. About 1920.
B. Around 1925.
C. Around 1930.
D. About 1935.
33.
A. Over 16 million.
B. Over 3.5 million.
C. Over 1 million.
D. Over 2.5 million.
34.
A. Corn.
B. Soybean.
C. Oat.
D. Rye.
35.
A. Corn.
B. Soybean.
C. Oat.
D. Rye.