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【简答题】
分解因式：16x 2 -9y 2 =（ ）。
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举一反三
【简答题】Here is pear for you. [ ] A a B an
【单选题】Help yourself to _______ . A. chickens and pears B. chickens and pear C. chicken and pear D. chicken and pears
A.
chickens and pears
B.
chickens and pear
C.
chicken and pear
D.
chicken and pears
【简答题】Pear International Co (Pear) is a manufacturer of electrical equipment. It has factories across the country and its customer base includes retailers as well as individuals, to whom direct sales are ma...
【单选题】The hyponyms of ‘vegetable’ are()
A.
banana, pear, jam
B.
pear, apple, banana
C.
cucumber, celery, peas
D.
tree, pine, elm
【简答题】rounder
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