单旋翼带尾桨的直升机的反扭矩主要由 ______来克服。
更新时间:2024-11-15 15:03:27 A、垂直安定面C
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Thanks to the militant feminist movement of the suffragettes before the First World War, votes were granted to women over the age of ________ in 1918.
The following words of the basic word stock denote the most common things and phenomena of the world around us EXCEPT ______ .
英语翻译：the science of biotic control
Please write a report _______ the above subjects are to be covered.
From the viewpoint of word formation, the word “ smog” is a ______.
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