（）适合用于做拍摄台
A. 地面
B. 书桌
C. 鞋盒
D. 讲台
（）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.
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