单项选择题 Charts should be corrected by using information published in the（）.

单项选择题 Bids will be taken and opened for（）of contract at the offices of Messrs. Albright，Jenkins & Co.，the ship’s Agents，located in this city，on August 19，2007，at 9:00 A. M.

单项选择题 A partly submerged vessel or object being towed，which is not readily noticeable，shall show （） .