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【判断题】
数列极限如果存在,则必唯一。A.
正确
B.
错误
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举一反三
【单选题】Many a boy and many a student_____looking forward to visiting the United States of America at present.
A.
are
B.
were
C.
is
D.
was
【简答题】Student participation in the classroom is not only accepted but also expected of the student in many courses. Some professors base part of the final grade on the student’s oral participation. Although...
【简答题】胚囊内的次生核是指融合的精子和卵细胞。( )
【单选题】Many a student ______ made that mistake before, which is another way of saying a great many students ________ made that mistake.
A.
had; has
B.
has been; have
C.
have; has
D.
has; have
【简答题】Student participation (参与)in tike classroom is not only accepted but also expected of the student in many courses. Some professors base part of the final grade on the student’ s oral participation. Al...
【单选题】______ teacher and _____ student has been invited. Which is wrong? [ ]
A.
Many a, (many a)
B.
Every, every
C.
No, no
D.
Each a, (each)
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