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【单选题】
If Newton lived today，he would be surprised by what ________ in science and technology．
[ ]
A.
had discovered
B.
had been discovered
C.
has discovered
D.
has been discovered
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
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A.
occasionally
B.
simultaneously
C.
eventually
D.
directly
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A.
catches
B.
follow
C.
understood
D.
hearing
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A.
shall
B.
need
C.
may
D.
can
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A.
to write
B.
writing
C.
is writing
D.
to be writing
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A.
together with
B.
like
C.
and not
D.
but in addition to
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A.
getting close to
B.
getting away from
C.
getting along with
D.
getting together with
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A.
keep; spreading
B.
prevent; spreading
C.
stop; to spread
D.
protect; to spread
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A.
that
B.
which
C.
where
D.
What
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A.
that
B.
when
C.
which
D.
where