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【多选题】
关于断路器断流容量的说法,正确的是()A.
断路器能可靠切除短路故障的关键参数是其额定断流容量
B.
断路器的额定断流容量应大于安装处的最大三相短路容量
C.
断路器额定断流容量的大小，取决于断路器灭弧装置的结构和尺寸
D.
如果断路器安装在较其额定电压低的电网中使用时，其断流容量相应降低
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【简答题】Why is the southern area of the Northern Territory called the Red Center of Australia?
【简答题】________,the capital of Northern Territory, was severely bombed during World War II.
【简答题】Answer the following questions. 1. Why is the southern area of the Northern Territory called the Red Center of Australia?
【单选题】Why is the southern area of the Northern Territory called the Red Centre of Australia?（）
A.
Because Uluru is located there.
B.
Because it is extremely hot and dry.
C.
Because it consists of miles and miles of red-sand desert and mountain ranges.
D.
Because it lies in the tropics.
【单选题】Which of the following is Littlewood ’ s classification of communicative activities?
A.
Functional communicative activities and grammatical activities.
B.
Functional communicative activities and social interaction activities.
C.
Grammatical activities and social interaction activities.
D.
Grammatical activities, functional communicative activities and social interaction activities.
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