问题
单项选择题
工业乙炔与氯化氢合成氯乙烯的化学反应器是（）。
A、釜式反应器；
B、管式反应器；
C、流化床反应器；
D、固定床反应器。
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
工业乙炔与氯化氢合成氯乙烯的化学反应器是（）。
A、釜式反应器；
B、管式反应器；
C、流化床反应器；
D、固定床反应器。
参考答案：D
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| Stuart and Steve were twin brothers, Stuart loved to play basketball. But Steve loved to read books. One day Stuart was playing basketball 1 he fell and broke his leg. When they took him to the hospital. The doctor said he wouldn't be able to play for six months. Steve went 2 him and brought him books on basketball. At first Stuart wasn't going to read them. Then he began to read them and 3 that there were ways he could play basketball better. He began to think that books weren't that 4 . When Stuart's leg started getting better, Steve would help him by going for walks with him. 5 Stuart's doctor said he could start playing basketball again. Then Stuart showed Steve how to toss (投) for baskets. Steve found that he enjoyed it. Then Stuart was ready to 6 the basketball games. Steve went to games and enjoyed himself. They then 7 practiced basketball and read books together. So you can see, when 8 happens, something good may also happen. Steve showed Stuart you books and Stuart showed Steve about basketball. So you can also 9 showing others something that you like to do and they can show you something that they like to do. 10 you can and new things to do. | ||||
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