A. √ B. ×
A. Because the string is broken. Because the kite is too big. C. Because the kite is flying higher than the others. D. Because the children are running after it
A. I00μF/20V B. 47μF/25V C. 10μF/25V D. 100μF/50V
A. 传染性 B. 破坏性 C. 隐蔽性 D. 变异性