（）是半导体单晶重要电学参数之一，它反映了补偿后的杂质浓度，与半导体中的载流子浓度有直接关系。
参考答案：电阻率
Read and complete.
1. My sister and I students in the same school.
2. They trees last weekend.
3. Let's _ and _____ basketball.
4. Ben tofu and vegetable much.
5. I to Beijing train last weekend.
6. I went to Shanghai. did you go _ your holiday?
球卡时如何处理？
