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【单选题】
n 个变量的函数最多有( )个最
A.
2n
B.
n 2
C.
2 n
D.
2 n -1
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参考答案:
举一反三
【单选题】对下面加横线的字解释错误的一项是:
A.
将适齐。适,适合。
B.
有人而校,罪莫大焉。校,抵抗。
C.
浴,薄而观之。薄,逼近。
D.
则何以报不谷?不谷,君王自谦之称。
【单选题】在恒定流中,流线与迹线在几何上( )
A.
相交
B.
正交
C.
平行
D.
重合
【单选题】After ________ refused to marry Apollo, Apollo made a curse that no one would ever believe her predictions.
A.
Castalia
B.
Syrinx
C.
Daphne
D.
Cassandra
【单选题】What no one would like to believe is that such a well-behaved gentleman _______ be a cheat!
A.
could
B.
may
C.
ought to
D.
should
【判断题】在恒定流动中,流线与迹线是同一条曲线,彼此重合。
A.
正确
B.
错误
【简答题】No one in my family could believe Allegra had any disability, much less one as severe as hers. To them a disability was physical, something you could see. They knew her as a happy, normal child. That'...
【单选题】在非恒定流中,流线与迹线是?
A.
一定重合
B.
一定不重合
C.
特殊情况下可以重合
D.
一定正交
【单选题】对下面加横线的字解释错误的一项是( )
A.
将 适 齐。适,适合。
B.
有人而 校 ,罪莫大焉。校,抵抗。
C.
浴, 薄 而观之。薄,逼近。
D.
则何以报 不谷 ?不谷,君王自谦之称。
【单选题】The ________ knew no one would believe his ideas without proof, so he tested them many times in his laboratory.
A.
scientist
B.
experiment
C.
process
D.
biology
【单选题】He walked along in the shadows, hoping no one would ________ him.
A.
believe
B.
recognize
C.
refuse
D.
with
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