问题
填空题
离子交换树脂的内部结构可分（）、（）、毛细孔道和凝胶孔部分。
答案
参考答案：高分子骨架；离子交换基团
搜题请搜索小程序“爱下问搜题”
离子交换树脂的内部结构可分（）、（）、毛细孔道和凝胶孔部分。
参考答案：高分子骨架；离子交换基团
Mrs. Scott and her husband are both 1 . They teach in the same school. They go to school 2 . They leave home at eight o’clock in the morning. And they 3 home at four o’clock in the afternoon. Sam Scott and his sister Ann are 4 . Sam 5 by bus, and Ann goes to school 6 .Some of 7 friends walk to school, too. Sam and Ann get home at four o’clock in the afternoon. They 8 before dinner, and they watch TV 9 dinner. They usually 10 early, especially(尤其) on school nights.
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