单项选择题

Mathematics as well as other subjects ______ a science.

A．was
B．is
C．are
D．belong to
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单项选择题
It is ______ that he will succeed this time.
A．likely
B．alike
C．unlike
D．dislike
单项选择题
I ______ several interesting facts about Mexico in that book.
A．came to
B．came into
C．came over
D．came across
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