单项选择题
Questions 11 to 18 are based on the conversation you have just heard.
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A.Typing.
B.Drawing a picture.
C.Doing exercise.
D.Playing the piano.
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单项选择题
A.The well.B.The wheels.C.The ears.D.His ears.
A.The well.
B.The wheels.
C.The ears.
D.His ears.
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单项选择题
A.The construction of the American space station.B.Budget problems.C.Delays.D.Technical difficulties.
A.The construction of the American space station.
B.Budget problems.
C.Delays.
D.Technical difficulties.
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