在海上航行期间。
A. During sailing at sea.
Before departure.
C. Passing through a canal.
D. Passing through a strait.
证书有效期到今年12月底。
A. The certificate will be valid till the end of December this year.
B. The deadline for the term of validity is the end of December this year.
C. The deadline for the term of validity is the end of next year.
D. The certificate will be valid till the end of November this year.
证书什么时候失效?
A. The deadline for the term of validity is unclear.
B. When will the certificate disappear?
C. How long will the certificate be extended?
D. When will the certificate be of invalidation?
国际安全管理规则的目的是什么?
A. What is the purpose of the PSC?
B. What is the purpose of the ISPS Code?
C. What is the purpose of the ISM Code?
D. What is the purpose of the SMS?
您多长时间测试一次救生艇机?
A. How long should you test lifeboat engine?
B. How often should you test lifeboat engine?
C. When should you test lifeboat engine?
D. When should you test the lifeboat?
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