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【单选题】
设向量组 线性无关,则下列结论中不正确的是( )A.
都不是零向量
B.
中至少有一个向量可由其余向量线性表示
C.
中任意两个向量都不成比例
D.
中任一部分组线性无关
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反馈参考答案：
举一反三
【简答题】How to cope with anxiety?A. While pring and treating
anxiety, exercise also helps improve one’s physical condition . B. Develop some regular sleeping hours
if you don’t have a regular sleeping pa...
【单选题】The last paragraph is intended to ______.
A.
tell people how to cope with Road Rage
B.
inform. people how aggressive drivers could be
C.
tell people how to control themselves when angry
D.
warn people against eye contact with another driver
【单选题】______the survivors know more of how to cope with cold water in the sinking of MV Titanic in 1912 countless lives ______.
A.
Have / could have been saved
B.
Have / could have saved
C.
Had / could has saved
D.
had / could have been saved
【多选题】how to cope with anxiety?
A.
sharing, finding a sympthetic ear
B.
learning relaxation techniques, such as yoga or massage
C.
more exercise
D.
Eat lots of fruit and vegetables
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