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【单选题】
在一棵三元树中度为3的结点数为2个，度为2的结点数为1个，度为1的结点数为2个，则度为0的结点数为( )个。【哈尔滨工业大学2001二、2(2分)】A.
4
B.
5
C.
6
D.
7
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皮皮学刷刷变学霸
举一反三
【多选题】What we could find out from The Doomsday Book ?
A.
important source of information
B.
a ‘snapshot’ of what life was like in the Middle Ages.
C.
how wealthy England was
【单选题】The Doomsday Book was in fact a record of each man's ______.
A.
behavior
B.
experience
C.
property
D.
reputation
【判断题】Doomsday Book (Domesday Book) was a record of British census and land survey in 1085-1086 ordered by William the Conqueror.
A.
正确
B.
错误
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