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What are those basic human concerns?
A、Human nature
B、Relationship to natural world
C、Human activity
D、Social relations
A、Human nature
B、Relationship to natural world
C、Human activity
D、Social relations
B.Relationship to natural world
C.Human activity
D.Social relations
B、They are talking about insurance coverage
C、They are talking about what goods should be insured
D、They are talking about when the goods should be insured
A、their mechanical strength are too low.
B、Boron fibers are expensive.
C、Boron fibers is hard to process into composite.
D、Boron has a tendency to react with other metals
B.where people live
C.when people get marrie
D.the number of homes that have a TV
B.In high doses, caffeine makes people think more quickly and clearly.
C.Caffeine has no effect on most peopl
E.
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