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【简答题】
果树的芽，依芽体外有无鳞片包被分为鳞芽和（）
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皮皮学刷刷变学霸
举一反三
【简答题】Fast speech I. In questions, do and did are reduced (pronounced very quickly) to become 'd. l Why did Patty leave?/ Why'd Patty leave? l Where did John go?/ Where'd John go? l What time do you wake up...
【简答题】这是Section II的第7题,也是这节课最后一个任务点的学习~ 请大家填写答案。填写格式为1xx,2xx... Listen to a short speech twice and during the second listening, put back the missing words in the blanks. Good morning everybody. Welcome to t...
【单选题】下列化合物中α-H的酸性最强的是
A.
CH 3 CO 2 CH 3
B.
CH 3 COCl
C.
CH 3 CHO
D.
CH 3 COCH 3
E.
NCCH 2 CN
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