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【单选题】

The question is __________for me to answer..

A.
easily enough
B.
enough easy
C.
easy enough
D.
enough easily
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【单选题】—Miss Green’s new dress looks smart.—I wonder what it wasof.
A.
made
B.
built
C.
done
D.
produced
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【简答题】在等差数列{an}中，若a10=0，则有等式a1+a2+…+an=a1+a2+…+a19-n（n＜19，n∈N+）成立，类比上述性质，相应的在等比数列{bn}中，若b11=1，则有等式______．
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【单选题】_____ you put your watch in your inside pocket (口袋). [ ]
A.
May be
B.
Maybe
C.
May
D.
Can
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【单选题】After class I have gymnastics two hours.[ ]
A.
at
B.
for
C.
on
D.
in
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【简答题】根据句子的意思，补全单词。1. I was unhappy yesterday because my new glasses ____ on the ground and broke into pieces.2. After the students finished the ___ exam yesterday, they had the winter vacation.3. Look! The...
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【单选题】We will have a picnic_____ Sunday morning[ ]
A.
on
B.
in
C.
at
D.
/
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【单选题】That famous musician is______Toronto.[ ]
A.
to
B.
from
C.
at
D.
for
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【单选题】It is impolite to _____ those persons in trouble. 　　[ ]
A.
1augh to
B.
1augh with
C.
laugh of
D.
laugh at
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【简答题】已知二阶矩阵A有特征值λ1=1及对应的一个特征向量e1=11和特征值λ2=2及对应的一个特征向量e2=10，试求矩阵A及其逆矩阵A-1．
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【单选题】Mr．Green, a famous writer, ____________ our school next week.
A.
visited
B.
visits
C.
was visiting
D.
will visit
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