- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
單項(xiàng)選擇題
On notification by Admiralty Notice to Mariners that a new edition of one of the books，or a new supplement to one，has been published，it should be obtained（）.
A.as soon as possible
B.prior to its publication
C.in advance of any possible accident
D.by means of other than airmails
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