99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

單項選擇題

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

你可能感興趣的試題

單項選擇題

I shall apply （） the extension of my Deratization Certificate．

A.to
B.for
C.of
D.on

單項選擇題

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

<dd id="ziu0k"><xmp id="ziu0k"><dl id="ziu0k"></dl>

<ins id="ziu0k"></ins>

<pre id="ziu0k"><acronym id="ziu0k"></acronym></pre>