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【单选题】
Mary often stays up, reviewing her lessons, books _____ all over the desk. [ ]A.
spreading
B.
spread
C.
are spreading
D.
to spread
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举一反三
【单选题】The lowly are the most (intelt); the elite are the most ignorant.
A.
可理解的
B.
可触摸的
C.
聪明的；机智的；（机器、系统等）智能的
【单选题】(2006.23)—My pen is lost and I can’t find it anywhere.—So you will have to buy__.
A.
it
B.
few
C.
one
D.
any
【简答题】Abraham Lincoln was born into poverty 200 years ago. At any other time and place, this lowly origin would have dictated his future, but in Lincoln’s case, his self-determination and force of will made...
【简答题】A．Because they are lowly paid. B．Because they are docile. C．Because they are malleable. D．Because they are highly paid.
【单选题】在定量分析中,精密度和准确度之间的关系是( )
A.
精密度高,准确度必然高
B.
准确度高,精密度未必高
C.
精密度是保证准确度的前提
D.
准确度是保证精密度的前提
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