问题
填空题
新阳树脂预处理时，用食盐水处理后，再用稀盐酸处理使树脂转为（）型，再用稀氢氧化钠处理，使树脂转为（）型。
答案
参考答案：氢；钠。
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新阳树脂预处理时，用食盐水处理后，再用稀盐酸处理使树脂转为（）型，再用稀氢氧化钠处理，使树脂转为（）型。
参考答案：氢；钠。
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 Jack and John are two boys. They are best __1__. They go to school and play sports together. Jack works hard, __2__ he is good at his lessons. John doesn't __3__ well in maths. So Jack often helps John with __4__ maths. There __5__ thirty-two students in their class. Lessons start __6__ 9 o'clock in the morning. They have __7__ break at eleven. They have lunch at school. They always eat some meat and some __8__ for lunch. About five o'clock they go home. Jack and John would like __9__ to the cinema this evening. It's Bolt (《闪电狗》) and it's their __10__ film. | ||||
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