( )Qian Xuesen is known as China’s “father of space technology and “king of rockets . He died ——青夏教育精英家教网—

摘要：( )Qian Xuesen is known as China’s “father of space technology and “king of rockets . He died October 31 at the age of 98. A. in B. on C. at D. of

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Qian Xuesen is known as China's "father of space technology" and "king of rockets"． He died _________ October 31 at the age of 98．