Horton Point Light ______.A.is 14 feet above sea levelB.has a fixed green lightC.is shown from a white square towerD.is synchronized with a radio beacon
Horton Point Light ______.
A.is 14 feet above sea level
B.has a fixed green light
C.is shown from a white square tower
D.is synchronized with a radio beacon
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AThe undersea world is very beautiful． Now more and more people want to dive in the water to find the secrets there． Scuba diving is a new sport today． It can take you into a wonder-ful undersea world．You will find many strange animals in the sea． Some are as large as a school bus． Many sea animals give out light in the dark and some have sharp teeth．During the day， there is enough light． Here， under the sea， everything is blue and green．When fish swim nearby， you can catch them with your hands． When you have bottles of air on your back， you can stay in deep water for a long time． However， you can-t dive too deep． And you must be very careful when you dive in deep water．The deep sea is not an easy place to live in． It-s cold， and it，s dark， too． The deeper it is， the less sunlight there is． At about 3，000 feet， there is no light at all． It is very dark in the sea． Many fishes have no eyes． Some have big eyes． A few have eyes on one side． Besides the cold and the darkness， deep-sea animals face a third danger-other animals．Animals eat! They must find food to eat． Many animals eat plants． However， some am-mals eat meat． This means these sea animals have two big jobs． They need to find animals as food， and they have to try not to become other animals' meal．( )21． Why do people want to dive in the sea? Because ________ ．A．they want to catch fishB． they want to find the secrets of the undersea worldC． the sea is deepD， there are all kinds of plants in the sea
Clearances of bridges and overhead cables below Bonneville Dam refer to heights in feet above mean ______.A.lower low waterB.high waterC.low waterD.sea level
Contour elevations on this chart refer to heights in feet above mean ______.A.lower low waterB.high waterC.low waterD.sea level
A towing light is ______.A.shown at the bowB.white in colorC.shown in addition to the stern lightD.an all-round light
A towing light is ______.A.shown below the stern lightB.white in colorC.displayed at the mastheadD.a yellow light having the same characteristics as the stern light
The "horse latitudes" are regions of ______.A.brisk prevailing windsB.light airs and calmsC.abundant blue sea grass vegetationD.None of the above
Normal pool elevation is the height in feet of the section of river above a dam. This height is measured from ______.A.low steel on the Huey P. Long BridgeB.mean sea levelC.the local water tableD.the minimum dam control level
A vessel showing a green light over a white light in a vertical line above the level of the sidelights is ______.A.engaged in underwater constructionB.under sail and powerC.a pilot vesselD.trawling
A vessel trawling will display a ______.A.red light over a white lightB.green light over a white lightC.yellow light over a red lightD.white light over a green light
共用题干第一篇California一A Land of Variety and ContrastCalifornia is a land of variety and contrast. Almost every type of physical land feature,sort of arctic ice fields and tropical jungles can be found within its borders.Sharply contrasting types of land often lie very close to one another. People living in Bakersfield,for instance,can visit the Pacific Ocean and the coastal plain,the fertile San Joaquin Valley,the arid Mojave Desert,and the high Sierra Nevada,all within a radius of about 100 miles. In other areas it is possible to go snow skiing in the morning and surfing in the evening of the same day,without having to travel long distance.Contrast abounds in California. The highest point in the United States(outside Alaska)is in California,and so is the lowest point(including Alaska).Mount Whitney,14,494 feet above sea level,is separated from Death Valley,282 feet below sea level,by a distance of only 100 miles. The two areas have a difference in altitude of almost three miles.California has deep,clear mountain lakes like Lake Tahoe,the deepest in the country,but it also has shallow,salty desert lakes.It has Lake Tulainyo,12,020 feet above sea level,and the lowest lake in the country,the Salton Sea,236 feet below sea level. Some of its lakes,like Owens Lake in Death Valley,are not lakes at all:they are dried up lake beds.In addition to mountains,lakes,valleys,deserts,and plateaus,California has its Pacific coastline,stretching longer than the coastlines of Oregon and Washington combined.Which of the following is NOT mentioned in the passage as being within a radius of about 100 miles of Bakersfield?A:The Pacific Ocean.B:San Joaquin Valley.C:Mojave Desert.D:Oregon and Washington.
共用题干第一篇California一A Land of Variety and ContrastCalifornia is a land of variety and contrast. Almost every type of physical land feature,sort of arctic ice fields and tropical jungles can be found within its borders.Sharply contrasting types of land often lie very close to one another. People living in Bakersfield,for instance,can visit the Pacific Ocean and the coastal plain,the fertile San Joaquin Valley,the arid Mojave Desert,and the high Sierra Nevada,all within a radius of about 100 miles. In other areas it is possible to go snow skiing in the morning and surfing in the evening of the same day,without having to travel long distance.Contrast abounds in California. The highest point in the United States(outside Alaska)is in California,and so is the lowest point(including Alaska).Mount Whitney,14,494 feet above sea level,is separated from Death Valley,282 feet below sea level,by a distance of only 100 miles. The two areas have a difference in altitude of almost three miles.California has deep,clear mountain lakes like Lake Tahoe,the deepest in the country,but it also has shallow,salty desert lakes.It has Lake Tulainyo,12,020 feet above sea level,and the lowest lake in the country,the Salton Sea,236 feet below sea level. Some of its lakes,like Owens Lake in Death Valley,are not lakes at all:they are dried up lake beds.In addition to mountains,lakes,valleys,deserts,and plateaus,California has its Pacific coastline,stretching longer than the coastlines of Oregon and Washington combined.How far away is Death Valley from Mount Whitney?A:About 3 miles.B:Only 100 miles.C:282 feet.D:14,494 feet.
共用题干第一篇California一A Land of Variety and ContrastCalifornia is a land of variety and contrast. Almost every type of physical land feature,sort of arctic ice fields and tropical jungles can be found within its borders.Sharply contrasting types of land often lie very close to one another. People living in Bakersfield,for instance,can visit the Pacific Ocean and the coastal plain,the fertile San Joaquin Valley,the arid Mojave Desert,and the high Sierra Nevada,all within a radius of about 100 miles. In other areas it is possible to go snow skiing in the morning and surfing in the evening of the same day,without having to travel long distance.Contrast abounds in California. The highest point in the United States(outside Alaska)is in California,and so is the lowest point(including Alaska).Mount Whitney,14,494 feet above sea level,is separated from Death Valley,282 feet below sea level,by a distance of only 100 miles. The two areas have a difference in altitude of almost three miles.California has deep,clear mountain lakes like Lake Tahoe,the deepest in the country,but it also has shallow,salty desert lakes.It has Lake Tulainyo,12,020 feet above sea level,and the lowest lake in the country,the Salton Sea,236 feet below sea level. Some of its lakes,like Owens Lake in Death Valley,are not lakes at all:they are dried up lake beds.In addition to mountains,lakes,valleys,deserts,and plateaus,California has its Pacific coastline,stretching longer than the coastlines of Oregon and Washington combined.Which of、 the following is the lowest point in the United States?A:Lake Tulainyo.B:Mojave desert.C:Death Valley.D:The Salton Sea.
共用题干第一篇California一A Land of Variety and ContrastCalifornia is a land of variety and contrast. Almost every type of physical land feature,sort of arctic ice fields and tropical jungles can be found within its borders.Sharply contrasting types of land often lie very close to one another. People living in Bakersfield,for instance,can visit the Pacific Ocean and the coastal plain,the fertile San Joaquin Valley,the arid Mojave Desert,and the high Sierra Nevada,all within a radius of about 100 miles. In other areas it is possible to go snow skiing in the morning and surfing in the evening of the same day,without having to travel long distance.Contrast abounds in California. The highest point in the United States(outside Alaska)is in California,and so is the lowest point(including Alaska).Mount Whitney,14,494 feet above sea level,is separated from Death Valley,282 feet below sea level,by a distance of only 100 miles. The two areas have a difference in altitude of almost three miles.California has deep,clear mountain lakes like Lake Tahoe,the deepest in the country,but it also has shallow,salty desert lakes.It has Lake Tulainyo,12,020 feet above sea level,and the lowest lake in the country,the Salton Sea,236 feet below sea level. Some of its lakes,like Owens Lake in Death Valley,are not lakes at all:they are dried up lake beds.In addition to mountains,lakes,valleys,deserts,and plateaus,California has its Pacific coastline,stretching longer than the coastlines of Oregon and Washington combined.Where is the highest point in the United States located?A:Lake Tahoe.B:Sierra Nevada.C:Mount Whitney.D:Alaska.
共用题干第一篇California一A Land of Variety and ContrastCalifornia is a land of variety and contrast. Almost every type of physical land feature,sort of arctic ice fields and tropical jungles can be found within its borders.Sharply contrasting types of land often lie very close to one another. People living in Bakersfield,for instance,can visit the Pacific Ocean and the coastal plain,the fertile San Joaquin Valley,the arid Mojave Desert,and the high Sierra Nevada,all within a radius of about 100 miles. In other areas it is possible to go snow skiing in the morning and surfing in the evening of the same day,without having to travel long distance.Contrast abounds in California. The highest point in the United States(outside Alaska)is in California,and so is the lowest point(including Alaska).Mount Whitney,14,494 feet above sea level,is separated from Death Valley,282 feet below sea level,by a distance of only 100 miles. The two areas have a difference in altitude of almost three miles.California has deep,clear mountain lakes like Lake Tahoe,the deepest in the country,but it also has shallow,salty desert lakes.It has Lake Tulainyo,12,020 feet above sea level,and the lowest lake in the country,the Salton Sea,236 feet below sea level. Some of its lakes,like Owens Lake in Death Valley,are not lakes at all:they are dried up lake beds.In addition to mountains,lakes,valleys,deserts,and plateaus,California has its Pacific coastline,stretching longer than the coastlines of Oregon and Washington combined.Which statement best demonstrates that California is a land of variety and contrast?A:The highest lake in California is Lake Tulainyo.B:It is possible to go surfing and snow skiing in some parts of California without having to travel long distance.C:Sierra Nevada,San Joaquin Valley,Mojave Desert and the Pacific Ocean all lie within a radius of about 100 miles.D:Owens Lake,in Death Valley,is not really a lake at all.
单选题What best describes the structure from which Stratford Point Light is shown?（）ABrown conical tower with white horizontal band in center of light on black pierBRed conical tower on brown cylindrical pierCWhite octagonal house on brown cylindrical pierDWhite conical tower，with brown band midway of height
单选题A vessel showing a green light over a white light in a vertical line above the level of the sidelights is（）.Aengaged in underwater constructionBunder sail and powerCa pilot vesselDtrawling
单选题A buoy marking a wreck will show a(n)（）.Awhite light FL (2) and a topmark of 2 black spheresBocculting green light and may be letteredCyellow light and will be numberedDcontinuous quick white light and may be numbered
单选题Normal pool elevation is the height in feet of the section of river above a dam. This height is measured from（）.Alow steel on the Huey P. Long BridgeBmean sea levelCthe local water tableDthe minimum dam control level
单选题If you are on the beach and are signaling to a small boat in distress that your present location is dangerous and they should land to the left，you would（）.Afire a green star to the leftBsend the letter K by light and point to the leftCplace an orange signal to your left as you signal with a white lightDsend the code signal S followed by L
单选题A vessel trawling will display a（）.Ared light over a white lightBgreen light over a white lightCyellow light over a red lightDwhite light over a green light
单选题The minimum length of a boat painter for a lifeboat in ocean service is（）.A60 fathomsBthe distance from the main deck to the light waterlineCtwice the distance from the main deck to the light waterline or 50 feet whichever is greaterDtwo times the distance from the boat deck to the light waterline or 50 feet whichever is greater
单选题At 0815，visibility is excellent and you can see Montauk Point. Montauk Point Light is（）.Ashown from a brown towerBequipped with a fog diaphoneClighted 24 hoursDis 79 feet (24 meters) high
单选题The sea anchor shown as item number 14 will NOT（）.Acheck the liferaft's wayBkeep the liferaft end on to the seaCreduce the possibility of capsizing or broachingDright the raft if it inflates inverted
单选题On navigational aids，what does the light characteristic Fl(2+1) mean?（）AA flashing light combined with a fixed light of greater brightnessBLight flashes combined in groups，with a different number of flashes in each groupCA light showing groups of two or more flashes at regular intervalsDA fixed light varied at regular intervals by groups of two or more flashes of greater brightness
单选题When making landfall at night，you can determine if a light is a major light or an offshore buoy by（）.Athe intensity of the lightBchecking the period and characteristics against the Light ListCthe color，because the buoy will have only a red or a green lightDAny of the above can be used to identify the light
单选题Horton Point Light（）.Ais 14 feet above sea levelBhas a fixed green lightCis shown from a white square towerDis synchronized with a radio beacon
单选题The lifesaving signal indicating You are seen - assistance will be given as soon as possible is the（）.Avertical motion of white flagsBvertical motion of a white light or flareCfiring of a green star signalDNone of the above