【简答题】(A=Kangkang B=Dad C=Mom) A: Dad, could you come and help me? B: Sure, dear. What is it? A: I don’t understand the meaning of “interpreter”. B: 小题1: A: But I left my dictionary at school. B: 小题2: A...
【简答题】小明利用生活中常见的材料做了两个小实验.(4分) (1)如图甲所示,将饮料瓶中装满水后拧紧瓶盖,在侧壁开了一个小孔 A ,发现水并不流出,这是因为受到 的作用;在 A 孔下方开一个相同大小的小孔 B ,将瓶盖拧开,发现从 B 孔喷出的水较急,这是因为 . (2)如图乙所示,将线圈一端引线上的绝缘漆全部刮掉,另一端只刮掉了半个侧面,放在磁铁上方后通电,线圈就会转动起来,这样便做成了一个简易电动机.其...
【简答题】情景交际。 (A=Kangkang B=Dad C=Mom) A: Dad, could you come and help me? B: Sure, dear. What is it? A: I don't understand the meaning of “interpreter”. B: 1.________ A: But I left my dictionary at school. B...