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单选题
Ice blink is（）.
A
the dark appearance of the underside of a cloud layer due to reflection of a surface of open water
B
the soft light appearance on the underside of a cloud layer due to reflection from a surface of open water
C
the yellowish-white glare on the underside of a cloud layer
D
water sky
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更多 “单选题Ice blink is（）.A the dark appearance of the underside of a cloud layer due to reflection of a surface of open waterB the soft light appearance on the underside of a cloud layer due to reflection from a surface of open waterC the yellowish-white glare on the underside of a cloud layerD water sky” 相关考题
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In cold, damp weather, the buildup of ice on airplane wings can pose significant aerodynamic problems. Which of the following effects would you expect?A.As ice builds up on the top of the wing, drag increases.B.As ice builds up on the top of the wing, lift increases.C.As ice builds up on bottom of the wing, lift decreases.D.All of the above
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When operating in an area where sea ice and icebergs are present，which statement is TRUE ________．A.Icebergs may travel in a direction many degrees different from the sea iceB.Both icebergs and sea ice will move in approximately the same direction and at the same speedC.Icebergs and sea ice will move in the same direction，but at different speeds due to the sail effect of the bergD.Icebergs and sea ice will move in the same direction，but the iceberg will move slower because of its underwater bulk
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You are on an ice-reinforced vessel about to enter packice．You should ______．A.enter the pack on the windward side where there is a well defined ice edgeB.trim to an even keel or slightly down by the bow to take maximum benefit of the ice reinforcementC.take maximum advantage of coastal leads caused by offshore windsD.look for areas of rotten ice and enter perpendicular to the ice edge
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In ice of higher concentrations ______ is not one of the basic applying rules．A.keep movingB.try to work with the ice movement，and not against itC.excessive speed means ice damageD.use full astern as often as possible
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考题
单选题The purpose of this passage is to ______.A
frighten people with the rapid melting of the Greenland ice sheetB
urge people to take some measures to curb the melting of the Greenland ice sheetC
promote people’s environmental protection consciousnessD
let people know the time the Greenland ice sheet will take to melt
考题
单选题In regions where ice conditions prevail in the winter，（）.A
the lantern panes of unattended lights may not become covered with ice or snowB
the lantern panes of unattended lights may become covered with ice or snowC
ice or snow is likely caused coloredD
the white lights are likely caused to appear colored
考题
单选题Multi-year ice is the hardest sea ice and should be avoided if possible. It is recognizable because of what tone to its surface color? （）A
GreenishB
BluishC
GreyD
Grey-white
考题
单选题When operating in an area where sea ice and icebergs are present，which statement is TRUE? （）A
Icebergs may travel in a direction many degrees different from the sea iceB
Both icebergs and sea ice will move in approximately the same direction and at the same speedC
Icebergs and sea ice will move in the same direction，but at different speeds due to the sail effect of the bergD
Icebergs and sea ice will move in the same direction，but the iceberg will move slower because of its underwater bulk
考题
单选题The scientists are not sure_______.A
how long the ice age lastedB
where ice sheets melted during the ice ageC
what caused the temperature changesD
what the earth is made up of
考题
单选题You are on an ice-reinforced vessel about to enter packice. You should（）.A
enter the pack on the windward side where there is a well defined ice edgeB
trim to an even keel or slightly down by the bow to take maximum benefit of the ice reinforcementC
take maximum advantage of coastal leads caused by offshore windsD
look for areas of rotten ice and enter perpendicular to the ice edge
考题
单选题The author of the passage would be most likely to agree with which of the following statements about the Milankovitch theory?A
It is the only possible explanation for the ice ages.B
It is too limited to provide a plausible explanation for the ice ages, despite recent research findings.C
It cannot be tested and confirmed until further research on volcanic activity is done.D
It is one plausible explanation, though not the only one, for the ice ages.E
It is not a plausible explanation for the ice ages, although it has opened up promising possibilities for future research.
考题
单选题The ice-skating partners, who were never finishing higher than seventh place, surprised their coaches by finally winning a competition.A
The ice-skating partners, who were never finishing higher than seventh place,B
The ice-skating partners, who had never finished higher than seventh place,C
Having never finished higher than seventh place as ice-skating partners,D
The ice-skating partners never finished higher than seventh place,E
Never finishing higher than seventh place, the skating partners has
考题
单选题What will happen with the freshening of waters?A
Sea-ice formation will reduce,B
Antarctic ice shelves will melt.C
Rainfall will increase,D
The circulation of deep waters will reduce.
考题
问答题Scientists have long assumed that most of the ice that melted was in the Northern hemisphere（半球） during the 30,000-year long ice age.
考题
单选题Which of the following is the best title for the passage ?A
A computer modelB
Studies show ice melted equally in the North and the South during the ice ageC
Most of the ice melted in the Northern hemisphere during the 30,000-year long ice ageD
A survey result
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