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【单选题】
He did not know it but his little puzzle had started a whole new branch of mathematics _____ “topology”.
In his honor this puzzle ______ “finding the Euler path.”.
[ ]
A.
calling; called
B.
called; is called
C.
is called; called
D.
calls; calling
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】We shouldn’t be ashamed of the way we look, ____________?
A.
should we
B.
shouldn’t we
C.
do we
D.
don’t we
【单选题】You can eat food free in my restaurant ________ you like.
A.
whenever
B.
wherever
C.
whatever
D.
however
【单选题】252．My little brother _________ the Young Pioneer Team last year.
A.
took part in
B.
attended
C.
joined
D.
Accepted
【单选题】We'll fly to the south to see you immediately the tickets become_____.[ ]
A.
present
B.
available
C.
easy
D.
convenient
【单选题】By 2013, cases of AIDS had been reported in Harbin, thus _____ AIDS a provincial concern.
A.
to make
B.
making
C.
having
D.
made
【单选题】________, he has finished his job ahead of time.
A.
As is expected
B.
Which is expected
C.
It is expected
D.
It is as expected
【单选题】Nothing can give a mother more pleasure than to see her children ______ to be useful citizens of the country.
A.
grown up
B.
turned out
C.
brought up
D.
brought out
【单选题】________the possible way into consideration, and you will find the problem ________ unpractical.[ ]
A.
Take; is appeared
B.
Take; appears
C.
Taking; is appeared
D.
Taking; appears
【单选题】Linda can't attend the party _____ at Tom's house atpresent because she is preparing aspeech for the party_____ at Marie's house tomorrow. [ ]
A.
being held; to be held
B.
to be held; held
C.
held; being held
D.
to be held; to be held
【单选题】You can’t imagine that a well-behaved gentleman __________ be so rude to a lady.
A.
must
B.
would
C.
should
D.
could