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饮品中的牛奶最高温度是?What is the ideal(highest) temperature for milk in the drinks?
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Mr. Wang teaches English in a middle school. He likes his work very much. He wanted1a teacher even when he was a young boy.There are six classes in a school day at Mr. Wang's middle school. Mr. Wang teachers five of these six classes.2his "free" hour from 2 to 3 in the afternoon, Mr. Wang3meet with parents, check students' homework and 4many other things. So Mr. Wang works hard from the moment he gets to school early in the morning until he leaves for home late in the afternoon, and his "free" hour is not free at all.In his English lesson, Mr. Wang sometimes teaches poems (诗). He likes poems very much, and he likes Li Bai’s poems5of all.In his fifth class today, Mr. Wang taught a poem. He wrote the poem on the blackboard and read it. As soon as he finished 6the poem, the students began to ask questions. He answered all the questions. Then he asked his students to talk about the poem. 7one wanted to stop when the bell rang.8home, Mr. Wang thought about the fifth class. He was happy about what he did as a teacher. Every one of his students9the poem. When they started to talk, they forgot about the time. He did not have to make them 10He only had to answer their questions and help them understand the poem.
汽油机燃油供给系统一般包括（）、（）、（）等系统组成
过量空气系数a＞1，则此混合气称为（）混合器；当a＜0.4时，混合气（），火焰不能传播，发动机熄火，此a值称为（）。
车用汽油机工况变化范围很大，根据汽车运行的特点，可将其分为（）、（）、（）、（）、（）五种基本工况
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