单项选择题
Masters of ocean-going ships must keep in mind that （） should be hoisted immediately if any quarantinable diseases be found．
A.the national flag
B.the quarantine signal
C.the Certificate of Pratique
D.the navigational light
点击查看答案&解析
相关考题
-
单项选择题
I shall apply （） the extension of my Deratization Certificate．
A.to
B.for
C.of
D.on -
单项选择题
The Certificate of pratique shall only have effect in （）.
A.all ports of the issuing country
B.all ports of the world
C.all ports other than a issuing country
D.all ports of ship's arriva -
单项选择题
The government of PR China （） that the above-mentioned ship complies with the provisions of the regulations annexed to the Convention referred to above as regards radiotelegraphy and radar．
A.certifies
B.confirms
C.contains
D.construes
