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【单选题】
We should _____ the power when our TV or computer is not used.
A.
turn on
B.
turn off
C.
turn up
D.
turn down
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参考答案:
举一反三
【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
查看完整题目与答案
【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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相关题目:
【单选题】The question is __________for me to answer..
A.
easily enough
B.
enough easy
C.
easy enough
D.
enough easily
查看完整题目与答案
【单选题】—Miss Green’s new dress looks smart.—I wonder what it wasof.
A.
made
B.
built
C.
done
D.
produced
查看完整题目与答案
【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______.
查看完整题目与答案
【单选题】_____ you put your watch in your inside pocket (口袋). [ ]
A.
May be
B.
Maybe
C.
May
D.
Can
查看完整题目与答案
【单选题】After class I have gymnastics two hours.[ ]
A.
at
B.
for
C.
on
D.
in
查看完整题目与答案
【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...
查看完整题目与答案
【单选题】We will have a picnic_____ Sunday morning[ ]
A.
on
B.
in
C.
at
D.
/
查看完整题目与答案
【单选题】That famous musician is______Toronto.[ ]
A.
to
B.
from
C.
at
D.
for
查看完整题目与答案
【单选题】It is impolite to _____ those persons in trouble. [ ]
A.
1augh to
B.
1augh with
C.
laugh of
D.
laugh at
查看完整题目与答案
【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.
查看完整题目与答案
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