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鞣质不能与哪类成分生成沉淀( )
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Two years ago I bought a bike. If you live in a town, it is often (1) than a car and you don’t have to worry (2) parking(车辆的停放). You can (3) it anywhere. (4) it has a seat at the back and a basket at the front, I can take my small daughter to school, to the library, shopping, anywhere in fact. I use it mostly in summer (5) the weather is warm and dry. In winter when there is snow or ice on the road, it can be very dangerous(危险的)to go out (6) bike, so you have to be very (7) . Accidents(事故)are not the only problems though. One day I (8) on it and when I came out of the supermarket I found (9) front wheel (车轮)missing. It was a long walk to the bike shop!Now I (10) three strong locks.
能清热化痰，又能润肺止咳，尤宜于虚劳燥咳的药物是( )
什么是道教的“斋醮”
游离醌类多具有( )
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