（）in a charter-party are working days on which the weather allows loading work or discharging work to be done.

When there are small differences between the heights of two successive high tides or two successive low tides，the tides are called（）.

_____ they are fit I see no reason why they shouldn’t go on playing for another four or five years.

The students in a certain physical education class are on either the basketball team or the tennis team, are on both these teams, or are not on either team. If 15 students are on the basketball team, 18 students are on the tennis team, 11 students are on both teams, and 14 students are not on either of these teams, how many students are in the class?

The students in a certain physical education class are on either the football team or the basketball team, are on both these teams, or are not on either team. If 12 students are on the football team, 15 students are on the basketball team, 8 students are on both teams, and 9 students are not on either of these teams, how many students are in the class?

Spring tides are tides that（）.

（）in a charter-party are working days on which the weather allows loading work or discharging work to be done.

Whenever visible traces of oil are observed on or below the surface of the water in the immediate vicinity of ship or its wake，Governments of Parties to the Convention should，to the extent they are reasonably able to do so，promptly（）the facts bearing on the issue of whether there has been a violation of the provisions of this Regulation or Regulation 10 of this Annex of MARPOL 73/78.

The master may bind the Shipowner or Charterer（）doing such things as are necessary on the part of the one or of the other to carry out the contract.

Why are many people on restricted or reduced diets?

On the fully containerized ship，approximately one-third or more of the cargo is on deck above the rolling center. Top stowed containers are subject to（）.