A. <0.77% B. 0.77%~2.11% C. 2.11%~4.3% D. 4.3%~6.69%
A. <0.02% B. <0.77% C. >0.77% D. =0.77%
A. F B. A C. P D. F+P
A. 2.0E-4 B. 0.77% C. 2.11% D. 4.3%