A-A+
From William H. Pickering's quotation we can
问题详情
From William H. Pickering"s quotation, we can conclude he thought the use of aero planes was ______.
A．incorrect
B．vague
C．imaginative
D．impracticable
参考答案
正确答案：D
解析：由题干William H．Picketing可定位到第五段：文中的visionary指“幻想的”，和impracticable的意思一致，所以选D)。incorrect“错误的”；vague“含糊的”；imaginative“富于想象力的”。
