A、正确
B、错误
答案:B
A、正确
B、错误
答案:B
A. 答案:
B. √
A. (A)40 m
B. (B)45 m
C. (C)50 m
D. (D)55 m
A. 答案:
B. ×
A. 答案:
B. ×
A. (A)0.01 mm,0.30 mm,0.05 mm
B. (B)0.1 mm,0.3 mm,0.5 mm
C. (C)0.1 mm,0.02 mm,0.05 mm
D. (D)0.01 mm,0.02 mm,0.5 mm
A. (A)1辆
B. (B)2辆
C. (C)3辆
D. (D)4辆
A. 答案:
B. ×
A. 答案:
B. √
A. (A)外径28 mm、导程30 mm
B. (B)外径29 mm、导程32 mm
C. (C)外径30 mm、导程28 mm
D. (D)外径28 mm、导程28 mm
A. (A)200~400 mm
B. (B)250~400 mm
C. (C)250~300 mm
D. (D)250~380 mm