The separator may be working ______.
A. security
B. commonly
C. normally
D. often
查看答案
Bearing knock is found, it ______ remedying.
A. leads
B. find
C. work
D. needs
你应该出示你的安全证书。
A. I may have a look at your Safety Certificate.
B. I may have a look at your Oil Record Book.
C. You should show me your Security Certificate.
D. You should show me your IOPP Certificate.
有效期的截止日期是明年6月底。
A. The deadline for the term of validity is the end of June next year.
B. The deadline for the term of validity is the end of June this year.
C. The deadline for the term of validity is the end of next year.
D. The deadline for the term of validity is unclear.
证书无效。
A. The certificate is valid.
B. The certificate will expire.
C. The certificate is invalid.
D. The certificate will be extended.
微信支付 
支付宝支付