A、Continuous fibers
B、chopped strands
C、fabrics
D、mats
A、Continuous fibers
B、chopped strands
C、fabrics
D、mats
B、Amount insured
C、The party effecting the insurance
D、All of the above
B.Once property rights are assigned,people can reach negotiations to make best use of resources,no matter how many people are affecteD
C.We must take into account which of the two parties is given the property right.
D.It is the best way to solve the external costs.
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、Persuasive speaking
C、Demonstrative speaking
D、Informative speaking
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