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【单选题】
What are two categories of vocabulary?

Receptive vocabulary and productive vocabulary
innate vocabulary and learned vocabulary
familiar vocabulary and unfamiliar vocabulary
new vocabulary and old vocabulary.
【单选题】
I would accept that there was a bias in some key areas of British life, [] that bias has now gone.

or
and
but
so
【判断题】
PRIMARY KEY可以唯一标识表中的某一条记录。

正确
错误
【单选题】
____ is essential to a successful scientist; he cannot hope to make any progress if he cannot work in a controlled way.

Discipline
Decision
Declaration
Dependence
【单选题】
________work and creative activities have been important drivers of human progress is deeply rooted in our social values.

How
Whether
That
Why
【简答题】
Translate the following sentence into Chinese.These senior scientists have committed to the rapid development of the Air Force of China all their lives.

【单选题】
The size of the generation gap seems to be spreading with ____ rapid changes in technology, in education, in transportation and in communication that are taking place all over ____ globe.

the;the
the;/
/;/
/;the
【单选题】
10.In January, 2004, the United States successfully launched “spirit”, a Mars Exploration Rover, _____ a new milestone in the history of mankind.

it marked
marking
marked
to mark
【单选题】
—Have you searched the sitting room for your key? —No. It was in the study________ I remember I left it.

which
where
that
as
【单选题】
What are two broad categories of knowledge?

Implicit knowledge and explicit knowledge
Obvious knowledge and unobvious knowledge
Inductive knowledge and deductive knowledge
Refereed knowledge and inferred knowledge.