You should drink a lot of water and juice .
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You take photos outside in the afternoon because it’s too bright.
1. What are the advantages and disadvantages of each way of teaching and learning?
大货车主要使用( )制动。
A. 盘式
B. 鼓式
C. 碟刹
制动器主要由( )和固定原件组成
A. 转向原件
B. 活动原件
C. 精密原件
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