（）照明会产生轮廓光
A. 顺光
B. 前侧光
C. 逆光
D. 侧逆光
U1 Conversation 1[音频]
A. In a bar.
B. At home.
C. In the office
D. At a cinema.
U1 Conversation 2[音频]
A. Jack Kilby is not well-known.
B. Jack Kilby invented something great.
C. Jack Kilby is famous for his invention.
D. Jack Kilby did not win the Nobel Prize.
U1 Conversation 3[音频]
A. Charlie Chaplin's films are too serious.
B. Charlie Chaplin's films are very creative.
Charlie Chaplin's films can't be understood easily.
D. Charlie Chaplin's films can't be compared with other films.
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