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【单选题】
由VFP数据库管理系统支持的数据模型是 _____ 。A.
网络模型
B.
关系模型
C.
层次模型
D.
对象模型
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皮皮学刷刷变学霸
举一反三
【单选题】Why can't a computer translation substitute for knowledge of different languages? Because ______.
A.
computers can alleviate much drudgery
B.
computer is always behind the times
C.
computer can't get the inner meaning of words
D.
computer has no sensation
【单选题】—Can you solve the problem? —Sorry, I can't. Why ___ ask the teacher ___ help? [ ]
A.
don't, for
B.
not, about
C.
don't, about
D.
not, for
【单选题】To agree with larger scale chart，latitudes taken from this chart should be increased ______ about 8 seconds．
A.
with
B.
in
C.
by
D.
to
【简答题】Why can’t the woman get the book from the library?
【单选题】She can’t help ______ for her family often, so she can’t help ______ why life is so hard.
A.
working ; wondering
B.
work ; wondering
C.
working ; wonder
D.
to work ; to wonder
【单选题】Why can’t the Career Tributes comes after Katniss?
A.
They can’t see in the dark
B.
They can’t climb a tree
C.
They can’t swim well
D.
They can’t run fast enough
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