单词拼写（共15分）
81.Does the small animal have two 81. stomachs 82. balance 83. determaination 84. recognice 85. quality 86. Surely 87. argument 88. chemistry 89. Organic 90. mercial ( 胃 )?
82. We should keep the b of nature.
83. He is a man of great (决心).
84. I r him although I hadn’t seen him for 10 years.
85. This new model is of high q and is not expensive either.
86. (想必) you locked the door? I would be surprised if you hadn’t.
87. They got into quite a heated (争论).
88.The (化学) teacher told us something interesting in his class.
89. O food is more and more popular with people.
90. These discoveries are of no c value, though they are highly praised.
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