The total drag on an airplane in flight is the combination of its induced drag and parasite drag.
A.
正确
B.
错误
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【简答题】The village was bombed __________ because some of the villagers had protected enemy soldiers. [A] in revenge [B] in joke [C] in spite [D] in fairness