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【多选题】
市场调研的内容主要有（ ）。A.
市场需求容量调研
B.
可控因素调研
C.
不可控制因素调研
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举一反三
【单选题】I went to see a film ______ last year. [ ]
A.
every three weeks
B.
every third weeks
C.
each three weeks
D.
each three weeks
【单选题】I go to see a film _________ .
A.
every two weeks
B.
every third weeks
C.
each three week
D.
each three weeks
【单选题】Paper produced every year is the world’s production of vehicles
A.
three times weight of
B.
three times the weight of
C.
as three times as heavy
D.
three times so heavy as
【单选题】Lucy ________ guitar lessons every three weeks in the past three years, but now she is considering she'll make it every other week.
A.
is having
B.
had had
C.
had
D.
has been having
【简答题】Paper produced every year is three times ______the world’s production of vehicles. A ． as heavier as B ． more heavier C ． of the weight of D ． the weight of
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