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【判断题】
企业规模经济是扩大多种产品生产工厂的规模，单位产品生产费用也会有一定程度的下降。（）A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】The earthquake in Japan, measuring 9.0 on the Richter Scale, was so violent cause a series of explosions of the nuclear reactors in several power stations.
A.
to
B.
that
C.
as to
D.
as that
【单选题】The earthquake may __ landslides that cause great damage and loss of life.
A.
trigger
B.
retreat
C.
emerge
D.
scrape
【简答题】The earthquake may _________ landslides that cause great damage and loss of life.
【简答题】The direct cause of most earthquake-related deaths or injuries is seldom ground movement, but______, flying glass and falling objects.
【单选题】Lecture B Seismic Waves Which wave is the main cause of the shaking in during an earthquake?
A.
Love
B.
P
C.
Rayleigh
D.
S
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