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【单选题】
物流的系统管理主要通过物流信息系统和()两方面的管理来实现。A.
物流技术系统
B.
物流作业系统
C.
物流运营系统
D.
物流战略系统
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皮皮学刷刷变学霸
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【简答题】Some researchers can not test their hypotheses by experiments because of ______.
【简答题】For what a purpose did the researchers use raw potato starch in their experiment?
【单选题】The Columbia University researchers are the first to use sea-surface temperatures to match the past El Nino occurrences.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】Some researchers have undertaken some psychological studies which prove that many children develop fears of ______ dangers.
A.
imagination
B.
imaginary
C.
imaginable
D.
imaginative
【单选题】Researchers have found that migrating animals use a variety of inner compasses to help them navigate. Some (1)_____ by the position of the Sun. Others navigate by the stars. Some use the Sun as (2)___...
A.
move
B.
fly
C.
steer
D.
swim
【简答题】The way a lot of researchers use to study anxiety is by ______.
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