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【简答题】
常用的筛析设备主要是( )和 ( )。
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【单选题】Many experts think the implications of the new legislation will need to be .
A.
looked at
B.
looked back
C.
looked for
D.
looked on
【单选题】We _______ at the house as we _______ of buying it.
A.
looked; were thinking
B.
looked; had thought
C.
were looking; thought
D.
were looking; were thinking
【单选题】The young dancers looked so charming in their beautiful clothes that we took _____pictures.
A.
many of
B.
a large amount of
C.
a plenty of
D.
masses of
【单选题】The young dancers looked so charming in their beautiful clothes that we took pictures of them.
A.
many of
B.
masses of
C.
the number of
D.
a large amount of
【单选题】设 是二阶齐次线性微分方程 的两个线性无关的特解,则 ( 为任意常数)( ).
A.
是该方程的通解;
B.
是该方程的解;
C.
是该方程的特解;
D.
不一定是该方程的解.
【单选题】I lost sight of Wang Ping when we reached _____ looked like a large market because of too many carriages flying in all directions.
A.
that
B.
which
C.
what
D.
where
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