皮皮学，免费搜题
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【单选题】
综合自动重合闸采用相电流差突变量选相元件，当线路故障时，如果三个元件中有两个动作，表示（ ）。A.
发生了三相短路
B.
发生了与两个元件有关的单相接地短路
C.
发生了两相接地短路
D.
发生了两相相间短路
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】We know from the passage that ________.
A.
the state of Minnesota is considering drawing up laws to protect private information
B.
most states are turning a blind eye to the deceptive practices of private businesses
C.
legislators are acting to pass a law to provide better privacy protection
D.
lawmakers are inclined to give a free hand to businesses to inquire into customers’ buying habits
【简答题】state-->n.