单项选择题
A.Hoist B.Lower a little C.Steady D.Take down
Put the（）（防鼠挡）on the lines.A. rat guardsB. stopping gua...
单项选择题Put the（）（防鼠挡）on the lines.
A. rat guards B. stopping guards C. fenders D. planks
National flag should not be（卷叠）（）.A. rolling upB. rolls...
单项选择题National flag should not be（卷叠）（）.
A. rolling up B. rolls up C. rolled up D. roll up
We shall prepare for(港口国)（）inspection.A.PSCB.ARPAC.GPSD...
单项选择题We shall prepare for(港口国)（）inspection.
A.PSC B.ARPA C.GPS D.ECDIS
