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【判断题】
系统有重特征值,且重特征值的几何重数(或独立特征向量的个数)为1时,则状态空间表达式可变换为约当标准型,一个重特征值在约当形矩阵J中对应一个约当块,该约当块的阶次即特征值的(代数)重数。单特征值(几何重数或独立特征向量的个数为1)在J中对应一个一阶约当块。
A.
正确
B.
错误
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举一反三
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defend
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【单选题】He is wearing sunglasses to ____ his eyes from the strong sunlight .
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【单选题】— What was Jim wearing at the party? — Nothing ________. He was in his usual shirt and jeans.
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simple
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【单选题】哪一类谁电解质代谢紊乱可导致脑内出血
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等渗性脱水
B.
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【单选题】He is wearing sunglasses to __________ his eyes from the strong sunlight.
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protect
B.
prevent
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save
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help
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【单选题】He is wearing sunglasses to _______ his eyes from the strong sunlight .
A.
protect
B.
hold
C.
stop
D.
prevent
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【单选题】He is wearing sunglasses to protect his eyes ___ the strong sunlight.
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from
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【单选题】He is wearing sunglasses to __________ his eyes from the strong sunlight.
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B.
prevent
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【单选题】He is wearing sunglasses to _______ his eyes from the strong sunlight .
A.
protect
B.
hold
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stop
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【单选题】He is wearing sunglasses to protect his eyes ___ the strong sunlight.
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by
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from
C.
to
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