区外故障时，设正序、负序及零序阻抗相等，则母差保护TA负载最大的故障类型为（）。
A.单相短路
B.两相短路
C.三相短路
D.两相接地短路
参考答案：A
狗脊的原植物为
A．体轻，质松，易折断，断面粉质，显疏松层纹B．质松而韧，横断面可见外层为海绵状物，内层为许多小室，室内有卵C．质硬而脆，断面平坦，外层白色，中间有亮棕色或亮黑色的丝线环4个D．体轻，中空，易碎，表面黄棕色半透明E．体轻，骨质坚硬，“马头，蛇尾，瓦楞身”
根据句意和首字母提示，填写单词。
1. Hurry up, or you will m___________ the last bus.
2. You do better than we have e___________.
3. Can I have a p___________ taken with you?
4. The f___________ in the village make a living by fishing.
5. Did the talk that the woman gave i___________ you all?
