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【单选题】
已知 维向量组 线性相关,则 ( )
A.
的任何部分组必线性相关;
B.
的任何部分组必线性无关;
C.
的极大线性无关组是惟一的;
D.
向量组 的秩小于S。
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参考答案:
举一反三
【单选题】Which one does not employ oxymoron?
A.
her cruel kindness
B.
a cheerful smile
C.
deafening silence
D.
a mournful optimist
【单选题】Which one does not mean very good?
A.
Fabulous
B.
Amazing
C.
Fantastic
D.
Just so so
【单选题】Which one does NOT belong to contraceptive approaches?
A.
Delaying effects
B.
Contraceptives
C.
Barrier methods
D.
Artificial fertilization.
【单选题】Which one does not the Pixar community feature?
A.
lasting relationships
B.
the belief that talent isn’t not easy to find
C.
the belief that once some basic assumptions are made, they cannot be easily changed
D.
telling truth
【单选题】Which one does not belong to Christians?
A.
Protestants
B.
Catholics
C.
Orthodox Christians
D.
Hindus (Hinduism)
【单选题】通常把( )纳米尺度的材料称为纳米材料。
A.
1~100纳米;
B.
1~100厘米;
C.
1~100微米;
D.
1~100丝米。
【单选题】which one does not make up Pelvis :
A.
bones
B.
joint
C.
muscle
D.
ligament
E.
pubic arch
【单选题】Which one does not belong to nonverbal communication?
A.
body posture
B.
eye contact
C.
facial expression
D.
language
【单选题】Which one DOES NOT belong to unconventional reservoir?
A.
Coal seam gas
B.
Shale gas
C.
Fractured reservoir
D.
Gas hydrate reservoir
【单选题】Which one does not occur in the Conclusion?
A.
original question or hypothesis
B.
implication
C.
new ideas or facts
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