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【简答题】
一、把下列每对句子合并成含有 定语从句 的主从复合句: 1. The fan is on the desk. You want it. 2. The man is in the next room. He brought our textbooks here yesterday. 3. The magazine is mine. He has taken it away. 4. The students will not pass the exam . They don’t study hard. 5. The woman is our geography teacher. You saw her in the park. 6. The letter is from my sister. I received it yesterday. 7. The play was wonderful. We saw it last night. 8. The train was late. It was going to Nanning. 9. The boy is my brother. He was here a minute ago. 10. The tree is quite tall. He is climbing it.
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举一反三
【单选题】— ______ will the bus come? — It will come in ten minutes. [ ]
A.
How many
B.
How much
C.
How soon
D.
How fast
【简答题】当温度升高时三极管的集电极电流IC增大,电流放大系数β____。
【简答题】当温度升高时三极管的集电极电流IC（），电流放大系数β（）。