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【单选题】
21 世纪成为人才的首要条件是A.
身体健康
B.
心理健康
C.
品德高尚
D.
人际关系良好
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举一反三
【单选题】For convenience, England is divided ______into three geological zones. [ ]
A.
profoundly
B.
definitely
C.
eventually
D.
roughly
【单选题】In 1831 when Smith was finally recognized by the Geological Society of London as the 'father of English geology,' it was not only for his maps but also for something even more important. Ever since pe...
A.
the rocks from different strata closely resembled each other
B.
he was often unable to find fossils in the younger rock strata
C.
their similarity to each other made it difficult for him to distinguish one rock type from another
D.
the type of rock between two consistent strata was always the same
【单选题】The unit of geological time is _______ ?
A.
million years
B.
thousand years
C.
hundred years
D.
ten years
【单选题】______ late in the evening that the geological team pitched camp.
A.
It's not until
B.
It was until
C.
It is till
D.
It was not until
【单选题】(The age of) a geological sample can (be estimated) from the ratio of radioactive to nonradioactive carbon (present) in the object (is examined).
A.
The age of
B.
be estimated
C.
present
D.
is examined
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