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单项选择题
A.developed
B.have developed
C.are being developed
D.will have been developed
单项选择题
A.neither
B.so
C.either
D.both
单项选择题
A.committed
B.switched
C.favoured
D.transferred
单项选择题
A.attracted
B.absorbed
C.drawn
D.concentrated
单项选择题
A.three-hours
B.three-hour
C.three-hours'
D.three-hour' s