日落降国旗。（）A、The ensign should be hoisted when the sun rises.B、The ensign should be lowered when the sun rises.C、The ensign should be hoisted when the sun sets.D、The ensign should be lowered when the sun sets.
日落降国旗。（）
- A、The ensign should be hoisted when the sun rises.
- B、The ensign should be lowered when the sun rises.
- C、The ensign should be hoisted when the sun sets.
- D、The ensign should be lowered when the sun sets.
相关考题：
When people speak of solar energy, they only think of sun’s rays heating a home or ________ electricity from the sun. A.deriveB.to deriveC.derivingD.of deriving.
Neap tides occur ______.A.at the start of spring, when the Sun is nearly over the equatorB.only when the Sun and Moon are on the same sides of the Earth and are nearly in lineC.when the Sun and Moon are at approximately 90°to each other, as seen from the EarthD.when the Sun , Moon, and Earth are nearly in line, regardless of alignment order
Spring tides occur______．A.when the moon is new or fullB.when the moon and sun have declination of the same nameC.only when the moon and sun are on the same sides of the earthD.at the beginning of spring when the sun is over the equator
When it is winter in China, ______.A. the USA is tilted toward the sun B. the South Pole is tilted away from the sunC. the North Pole is tilted toward the sun D. the North Pole is tilted away from the sun
When an azimuth of the Sun has been taken and the deviation of the standard magnetic compass computed，the watch officer should record the results ______.A.in the vessel's Official LogbookB.on the compass deviation cardC.in the compass deviation logD.on a Napier diagram
在船上应当日落时降下国旗.（）A、We should lower national flag when the sun sets.B、We should lower national flag when the ship is in port.C、We should lower national flag when loading and unloading.D、We should lower national flag when the sun rises.
在船上应当日出时升起国旗。（）A、On board national flags should be hoisted when the sun sets.B、On board national flags should be hoisted when the sun rises.C、On board national flags should be lowered when the ship is in port.D、On board national flags should be hoisted flag when loading and discharging
日出升国旗。（）A、The ensign should be hoisted when the sun rises.B、The ensign should be lowered when the sun rises.C、The ensign should be hoisted when the sun sets.D、The ensign should be lowered when the sun sets.
单选题An amplitude of the Sun in high latitudes（）.Ais most accurate before sunriseBis most accurate after sunsetCshould only be observed when the Sun's lower limb is above the horizonDis most accurate when the Sun's center is observed on the visible horizon
单选题Neap tides occur（）.AAt the start of spring，when the Sun is nearly over the equatorBOnly when the Sun and Moon are on the same sides of the Earth and are nearly in lineCWhen the Sun and Moon are at approximately 90° to each other，as seen from the EarthDWhen the Sun，Moon，and Earth are nearly in line，regardless of alignment order
单选题When launching a lifeboat in the rough sea，the davit gears should be released（）.Abefore the boat is lowered from the stowed positionBas the boat fall blocks break clear of the davit headCbefore the boat is lowered from the embarkation levelDafter the boat is released into the water
单选题When launching a lifeboat，the tricing pennants should be released（）.Abefore the boat is lowered from the stowed positionBas the boat-fall blocks break clear of the davit headCbefore the boat is lowered from the embarkation levelDafter the boat is released into the water
单选题在船上应当日落时降下国旗.（）AWe should lower national flag when the sun sets.BWe should lower national flag when the ship is in port.CWe should lower national flag when loading and unloading.DWe should lower national flag when the sun rises.
单选题在船上应当日出时升起国旗。（）AOn board national flags should be hoisted when the sun sets.BOn board national flags should be hoisted when the sun rises.COn board national flags should be lowered when the ship is in port.DOn board national flags should be hoisted flag when loading and discharging
单选题日落降国旗。（）AThe ensign should be hoisted when the sun rises.BThe ensign should be lowered when the sun rises.CThe ensign should be hoisted when the sun sets.DThe ensign should be lowered when the sun sets.
单选题Superior conjunction occurs when（）.Athe Sun is at maximum declination north or southBa planet crosses the external plane of the eclipticCthe Sun is between the Earth and a planetDtwo planets are in line
单选题Opposition occurs when（）.Athe Sun，Earth，and Moon are at right anglesBthe Sun's declination is 0°and is moving southCan inferior planet is at the maximum angle to the line of sight to the SunDthe Earth is between a planet and the Sun
单选题日出升国旗。（）AThe ensign should be hoisted when the sun rises.BThe ensign should be lowered when the sun rises.CThe ensign should be hoisted when the sun sets.DThe ensign should be lowered when the sun sets.
单选题Spring tides occur（）.Aat the start of spring，when the Sun is nearly over the equatorBonly when the Sun and Moon are on the same side of the Earth and nearly in lineCwhen the Sun and Moon are at approximately 90°to each other as seen from the EarthDwhen the Sun，Moon，and Earth are nearly in line，in any order
单选题Spring tides occur（）.Awhen the moon is new or fullBwhen the moon and sun have declination of the same nameConly when the moon and sun are on the same sides of the earthDat the beginning of spring when the sun is over the equator