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【单选题】
已知 , 为 阶非零矩阵,且满足 ,则( )A.
时， 的秩必为
B.
时， 的秩必为
C.
时， 的秩必为
D.
时， 的秩必为
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举一反三
【简答题】___ is not written by Ralph Waldo Emerson. A.Self-reliance B.Nature C.The American Scholar D. The Bells
【简答题】在液压系统中，由于某一元件的工作状态突变引起油压急剧上升,在一瞬间突然产生很高的压力峰值，同时发生急剧的压力升降交替的阻尼波动过程被称为 。
【单选题】请写出该单词的英语解释: 8.lack
A.
to continue to live
B.
to arrive at a place
C.
. Not any or enough of something
【单选题】Ralph Waldo Emerson's ----- is regarded as the "Declaration of Intellectual Independence".
A.
“Nature”
B.
“The conduct of Life”
C.
“Representative Men”
D.
The American Scholar
【单选题】Ralph Waldo Emerson said that the only way to have a friend ________.
A.
was to be one
B.
is to be such
C.
was being one
D.
is being such
【单选题】Ralph Waldo Emerson is ___________.
A.
a poet
B.
an essayist
C.
a lecturer
D.
all of the above
【单选题】Ralph Waldo Emerson was a representative of_________.
A.
romanticism
B.
realism
C.
surrealism
D.
transcendentalism
【单选题】Which works of Ralph Waldo Emerson can be regarded as the Intellectual Declaration of Independence?
A.
Nature
B.
The American Scholar
C.
Self-reliance
D.
Representative Men
【单选题】The Scarlet Letter is the masterpiece of______.
A.
Nathaniel Hawthorne
B.
Ralph Waldo Emerson
C.
Emily Dickinson
D.
Walt Whitman
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