单项选择题
Questions 11 to 18 are based on the conversation you have just heard.
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A.He is forgetful.
B.His class is easy.
C.He is looking for an assistant.
D.His course is difficult.
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A consultant engineer at NASA points out that using aircraft acting as the first Stage provides several advantages over a throw-away booster rocket.
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单项选择题
What are the treatments used at the center
A.Swimming sessions with dolphins.
B.Conventional therapies.
C.Both A and B.
D.Not mentioned.
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