第22题: [单项选择]What is the author's attitude towards Bush's spaceflight program A. Negative. B. Positive. C. Neutral. D. Not mentioned in the passage. 参考答案:B 答案解析:这道题是一道细节题;同时,由于 Bush's spaceflight program是本文讨论的中心,因此也必须通读全文,找出作者表示态度的几个关键词。在第三段中“Bush deserves cred