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更多“DataFrame.isna()和isnull()都可以判断…”相关的问题
—Is this umbrella yours？
A．No, it isn't
B．Yes, it isn't
C．Thank you
听力原文：Isn't it in you bag？
(11)
A．Yes, it isn't.
B．No, it is.
C．Yes, it is.
——Wei Fang isn't at school today, is she？ ——______ .
A．No, she is.
B．Yes, she isn't
C．No, she isn't
It ______ there isn't any good ill in these days.
A．looks
B．sees
C．seems
It's ______ hot today, isn't it？
A．little
B．bit
C．a bit
There has been a great increase in retail sales, ________？
A) does there
B) isn’t there
C) hasn’t there
D) isn’t it
A．She prefers the stadium.
B．The light isn't bright enough.
C．She agrees with the man.
D．The dining hall isn't large enough.
He said," ______ much water in the north of his province."
A．There aren't
B．It isn't
C．There isn't
-- Are the two answers correct？ -- No, ______.
A．both aren't
B．neither is
C．either isn't
A．Her daughter isn't in her class.
B．She isn't related to the student.
C．She doesn't think that she looks like the Student.
D．The student shouldn't have looked at her like that.
