My father was thin ten years ago, ________ now he’s strong. ( )

My father was thin ten years ago, ________ now he’s strong. ( )

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Look at that girl. She is ___________ (跳舞)on the playground.

Look at that girl. She is ___________ (跳舞)on the playground.

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My sister likes playing _____ violin while my brother likes playing _____ basket

My sister likes playing _____ violin while my brother likes playing _____ basketball. ( )

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我们通过鼻腔吸进的空气和口腔吃进的食物,进入人体的共有通道是

我们通过鼻腔吸进的空气和口腔吃进的食物,进入人体的共有通道是

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经分析核糖体是由蛋白质和另一种物质构成,下列生物所含成分与核糖体最接近的是

经分析核糖体是由蛋白质和另一种物质构成,下列生物所含成分与核糖体最接近的是

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