题型：问答题 简答题 如图所示，放在水平地面上的光滑绝缘圆筒内有两个带正电小球A、B，A位于筒底靠在左侧壁处，B在右侧筒壁上，受到A的斥力作用处于静止．若A的电量保持不变，B由于漏电而下降少许重新平衡，下列说法中正确的是（ ）A．小球A对筒底的压力变小B．小球B对筒壁的压力变大C．小球A、B间的库仑力变小D．小球A、B间的电势能减小 查看答案
题型：问答题 简答题 补全对话。M: Oh, hi, what is your name again? Since this is only the 2nd day of school, I can't remember the students' names yet. W: 1 I have a hard time remembering names myself. M: Uh, Karen, right? W: 2 My mom's name is Karen. M: Nancy, okay. I think I heard you were from England. W: Well, I was born there, but my parents are American. I grew up in France. M: 3 W: But then we moved here when I was nine. M: 4 W: Well, he is a college professor, and he is in Scotland at the moment. M: How interesting! What does he teach? W: Oh, I have no idea. 5 He teaches chemistry. A. So, what does your father do now? B. It is okay. C. Nah, just joking. D. What's your mother's name? E. Oh, a world traveler! F. No, it is Nancy. 1._____2._____3._____4._____5._____ 查看答案
题型：问答题 简答题 新生儿白细胞计数结果为（）A.（4～10）×109/LB.（5～12）×109／LC.（11～12）×109/LD.（15～20）×109/LE.（16～22）×109/L 查看答案
