1. [单选题]国际航行散化船记录CRB应用()语言。
A. 俄语
B. 汉语
C. 船籍国、英语
2. [单选题]When adding oil to a refrigeration system, precautions must be taken to ensure that
A. the compressor suction pressure is not too high
B. all air is purged from the pump and charging fittings
C. the high pressure cutout switch is held open to prevent accidental starting
D. the condenser is completely shutdown first
