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【单选题】
以下哪种短路形式最严重?A.
三相短路
B.
两相短路
C.
两相接地短路
D.
单相接地短路
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反馈参考答案：
举一反三
【简答题】《中国地理》在地理科学及专业人才培养中拥有怎样的地位?
【单选题】Right at the top is___. It is 300 mm long and 25 mm wide with its upper edge in line with the uppermost continuous watertight deck.
A.
the deck line
B.
Plimsoll disc
C.
Plimsoll line
D.
summer load line
【简答题】请介绍薜萝水榭的楹联
【单选题】【单选】Right at the top is ____.It is 300 mm long and 25 mm wide with its upper edge in line with the uppermost continuous watertight deck.
A.
the deck line
B.
Plimsoll disc
C.
Plimsoll line
D.
summer load line
【单选题】Right at the top is the ______. It is 300 mm long and 25 mm wide with its upper edge in line with the uppermost continuous watertight deck.
A.
deck line
B.
Plimsoll disc
C.
Plimsoll line
D.
summer load line
【单选题】A right-circular cylinder, open at the top, is filled with liquid, and rotated about its vertical axis at such speed that half the liquid spills out.The pressure intensity at the center of the bottom ...
A.
(a) zero
B.
(b) one-fourth its value when cylinder was full
C.
(c) indeterminable; insufficient data
D.
(d) greater than a similar case with water as liquid
E.
(e) none of these answers
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