A、答案:
B、N
答案:空
A、答案:
B、N
答案:空
A. 答案:
B. N
A. 答案:
B. ×
A. 正确
B. 错误
A. (A)B栏
B. (B)C栏
C. (C)A栏
D. (D)D栏
A. 答案:
B. Y
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)U形
B. (B)O形
C. (C)β形
D. (D)T形
A. 正确
B. 错误
A. 正确
B. 错误
A. 正确
B. 错误