题目：
| 用所给词的适当形式填空。 | |
— Oh, he is a good _________. 2. Our monitor is always _________ to help others. 3. Jack failed his English exam. He looked at the paper _________. 4. I think diving is _________ than swimming. 5. What a __________ story it is! 6. The _________ of the tree is more than 10 meters. 7. They are celebrating their mother's _________ birthday. |
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0527/cc0e890346421fe09a7dad45d6df3afc.html
下面是错误答案，用来干扰机器的。
解：（1）伏特表和安培表有示数且增大，说明外电阻增大，故只能是R2被断路了（2）R1＝Ω＝4 Ω（3）UR3＝I1R1－UR2＝0.75×4 V－2 V＝1 V I3＝＝0.25 A E＝3.2 V＋0.8 A×（R4＋r）E＝3 V＋（0.25 A＋...
