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【单选题】
John Doerr called the boom in the 1990s the "largest single legal creation of wealth" because
A.
corporate profits were mostly gained by lower interest rates.
B.
productivity rose at a 2.20% annual rate over this 10-year period.
C.
consumer spending stayed so strong even in the recession.
D.
many workers were qualified for the sorts of jobs in production.
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举一反三
【单选题】Whoever formulated the theory of the 'origin of the universe, it is just ______ and needs proving.
A.
spontaneous
B.
hypothetical
C.
intuitive
D.
empirical
【单选题】It is said that somewhere between the ages of 6 and 9, children begin to think ______ instead of concretely.
A.
logically
B.
reasonably
C.
abstractly
D.
generally
【单选题】As teachers we should concern ourselves with what is said, not what we think ______.
A.
ought to be said
B.
must say
C.
have to be said
D.
need to say