在20世纪50—60年代中国有哪些作品在世界获了奖？
参考答案：
红绸舞；荷花舞；鄂尔多斯舞；孔雀舞；春江花月夜
— What are the students doing?
— Some _ books and others at the blackboard. [ ]
A. are looking; are reading
B. are reading; are watching
C. are watching; are looking
D. are reading; are looking
燃油系统中超压电门的设定值是（）
A、15PSI
B、25PSI
C、35PSI
D、45PSI
