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搜题
【单选题】
Which is the main idea about students in the 1960s?
A.
They spend a lot of time in Internet chat rooms.
B.
They do not have the enthusiasm for college life that they used to.
C.
They are only interested in their chances of getting a good job.
D.
They are very dependent on their parents.
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【单选题】在线索化二叉树中,t 所指结点没有左子树的充要条件是 ( )
A.
t -> lchild = NULL;
B.
t -> ltag = 1;
C.
t -> ltag = 1 且 t -> lchild = NULL ;
D.
以上都不对;
【单选题】在线索化二叉树中,t所指结点没有左子树的充要条件是( )
A.
t->ltag==1
B.
t->leftchild==NULL
C.
t->ltag==1且t->leftchild==NULL
D.
以上都不对
【单选题】在线索化二叉树中, t 所指结点没有左子树的充要条件是( )。
A.
t → lchild = =NIL
B.
t → ltag = =1
C.
t → ltag = =1 且 t → lchild = =NIL
D.
以上都不对
【单选题】He went away whistling, the dusty old book______beneath his arm.
A.
tucking
B.
to be tucked
C.
tucked
D.
having tucked
【判断题】His mind went back to that book—the book the lord Himself must have put into his hands out of the hundreds of Army library books sent to the Florida training camp. 他又回想起那本书—那必定是上帝亲自从佛罗里达训练营陆军图书馆的成百部书中...
A.
正确
B.
错误
【单选题】Away _____ and in ______. [      ]
A.
went he; came his sister
B.
he went; his sister came
C.
went he; his sister came
D.
he went; came his sister
【单选题】His eyes from the book . He stared at the wall and then went back to reading for a little.
A.
mixed
B.
sought
C.
carried
D.
wandered.
【单选题】在线索化二叉树中, t 所指结点没有左子树的充要条件是 。
A.
t - >left= =NULL
B.
t - >ltag= =1
C.
t - >ltag= =1 且 t - >left= =NULL
D.
以上都不对
【单选题】his book, he went out for a walk.
A.
Read
B.
Being read
C.
Reading
D.
Having read
【简答题】A.He went to the library twice to look for the book. B.He already returned the book to a library out of town. C.He called the library to say the book would be overdue. D.He couldn't return the library...
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