问题
判断题
烟道内动压是单位体积气体所具有的动能，是气体流动的压力。由于动压仅作用于气体流动的方向，动压恒为正值。
答案
参考答案：对
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烟道内动压是单位体积气体所具有的动能，是气体流动的压力。由于动压仅作用于气体流动的方向，动压恒为正值。
参考答案：对
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| Do you like going to the movies? 1 of the students like movies very much. Last Monday I went to middle school and 2 some students about their favorite movies. Some of their 3 were really interesting. Here are their likes and 4 : Jim, 5 eleven-year-old boy, likes watching thrillers because they are scary 6 exciting. His classmate, Lisa, 7 stand documentaries. She told me they were 8 parents. But she really likes comedies because they are 9 . Victor is a big boy. He said he didn't mind documentaries. But he doesn't like comedies because they are boring! And the coolest movies are action movies. Everyone 10 them very much. | ||||
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