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
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
A、Reading data from and writing data to data memory
B、ALU computation and writing data to the register file
C、Updating PC and writing data to data memory
D、Reading data from register file, ALU computation and writing data to data memory
A、Dominating Qi, governing respiration
B、Domination dispersing and descending
C、Regulating water passage
D、Facing vessels and dominating administration and regulation
A、Storing essence, dominating growth, development and reproductivity
B、Dominating water
C、Dominating receiving Qi
D、Dominating Shen
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