单项选择题
A.under no conditions B.at a maximum rate of two ounces per day C.if gathered during or immediately after a hard rain D.after mixing with an equal quantity of fresh water
Once you have established the daily ration of drinking ...
单项选择题Once you have established the daily ration of drinking water in a survival situation，how should you drink it?（）
A.Small sips at regular intervals during the day B.The complete daily ration at one time during the day C.One-third the daily ration three times daily D.Small sips only after sunset
On an oceangoing vessel，for each person a lifeboat (wit...
单项选择题On an oceangoing vessel，for each person a lifeboat (without desalting kits) is certified to carry，the boat must be supplied with（）.
A.2 pounds of condensed milk B.a signaling whistle C.3 litres of water D.a life preserver
On a lifeboat equipped with Rottmer-type releasing gear...
单项选择题On a lifeboat equipped with Rottmer-type releasing gear，turning the releasing lever releases（）.
A.the painter B.the after boat fall only if the boat is waterborne C.both falls at the same time only if the boat is waterborne D.both falls at the same time even if the boat has not reached the water
