问题
单项选择题
添加材可吸收自重几百倍水的胶状材料能吸水但不溶于水是（）。
A.矿物类
B.高吸水性树脂
C.纤维类
D.表面活性材料
答案
参考答案：B
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添加材可吸收自重几百倍水的胶状材料能吸水但不溶于水是（）。
A.矿物类
B.高吸水性树脂
C.纤维类
D.表面活性材料
参考答案：B
Tom: Hello, Li Lei! This is Tom. Li Lei: Hi, Tom. Where are you? Tom: I’m in Toronto. I’m studying here. Li Lei: That’s great! How’s is it going? Tom: Not bad. How about you? Li Lei: Pretty good. How’s the weather there? Tom: It’s cold. It’s snowing outside. Li Lei: Snowing? Hainan is sunny and hot. Tom: What are you doing? Li Lei: I’m helping my mom clean the room. Tom: Oh. Really? Good boy. Li Lei: Thanks.
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