航海英語船舶檢驗(yàn)報告單項(xiàng)選擇題每日一練(2019.01.15)

來源：考試資料網(wǎng)

1 At（）an occasional survey has been carried out．

2 During fueling，all doors，hatches，and ports（）.

3 Chain slings are suitable for heavy slender articles，such as（）.

4 The document on a vessel，annually endorsed by an American Bureau of Shipping surveyor，is called the（）.

5 The smallest size of flaw that can be detected on a radiograph examination of a weld will be indicated by the（）.