【简答题】听下面一段对话,回答第1-3小题。 1. What is the woman? [ ] A. A teacher. B. A student. C. A businesswoman. 2. What will the woman do on Tuesday night? [ ] A. Study. B. See a film. C. Go out for dinner. 3. Wh...
【简答题】听下面一段材料,回答第1-2题。 1. What is the woman going to be? A. A cook. B. A teacher. C. A doctor. 2. How long will the woman work every day? A. 8 hours. B. 5 hours. C. 4 hours.
【单选题】30层以上或高度超过100m的写字楼、酒店等采用( )。
【简答题】P 型半导体是在本征半导体中加入( )后形成的杂质半导体。