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【简答题】
我国国家标准《GB/T 156-2007标准电压》规定了电力系统以及相关设备的标准电压,该标准给出的三相交流系统的标称电压值有哪些?
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】下面有关二进制的描述，错误的是( )。
A.
二进制数只有0和1两个数码
B.
二进制数只有两位数组成
C.
二进制各位的权分别为1，2，4，……
D.
二进制运算逢二进一
【单选题】He wants nothing but a house of ____. A. his own B. himself c. his father D. his own house
A.
himself
B.
his father
C.
his own house
D.
his own
【单选题】He wants nothing but a house of______.
A.
his own
B.
himself
C.
his father
D.
his own house
【单选题】He wants nothing but a house of ____. A. his own B. Himself c. his father D. his own house
A.
his own
B.
himself
C.
his father
D.
his own house
【简答题】A man stayed in his house as a flood engulfed (包围) his town. Two men in a boat came to his house and offered to take him to safety. “No, thank you,” said the man, “God will help me.” As the waters ros...
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