A. 正确 B. 错误
A. one and one-half times the length of a dot B. twice the length of a dot C. three times the length of a dot D. four times the length of a dot
A. 厕所 B. PFD上 C. MFD上 D. EICAS的CAS区和RWP
A. 1家 B. 2家 C. 3家 D. 4家