答案:B
A. (A)60s
B. (B)65s
C. (C)70s
A. (A)920kPa
B. (B)950kPa
C. (C)950±20kPa
A. A.20
B. B.30
C. C.50
A. (A)LC及LLC
B. (B)LLC及1-6C
C. (C)LC及1-6C
A. (A)0.5
B. (B)0.7
C. (C)1