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【多选题】
德国鱼雷罐铁水车压块磨损严重时应（）或（）
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【单选题】The report came to the British on May 21, 1941. The German battleship Bismarck, the most 1 warship in the world, was moving out into the Atlantic Ocean. Her task: to destroy the ships 2 suppli...
A.
end
B.
sea
C.
fight
D.
day
【简答题】质量为M的快艇携带一颗质量为m的鱼雷，两者一起以速度v向前运动．快艇沿前进方向发射鱼雷后，速度减为原来的 1 3 ，不计水的阻力，则鱼雷的发射速度为（ ）
A.
2M+3m 3m v
B.
2M 3m v
C.
4M-m 3m v
D.
4M 3m v
【单选题】Part ADirections: Read the following four texts．Answer the questions below each text by choosing A, B, C or D ．Mark your answers on ANSWER SHEET 1.It was the worst tragedy in maritime (航海的) history, s...
A.
It was attacked by Russian torpedoes.
B.
Most of its passengers were frozen to death.
C.
Its victims were mostly women and children.
D.
It caused the largest number of casualties.
【单选题】It was the worst tragedy in maritime (航海的) .history, six times more deadly than the Titanic. When the German cruise ship Wilhelm Gustloff was hit by torpedoes (鱼雷) fired from a Russian submarine in th...
A.
a strong ice storm tilted the ship
B.
the cruise ship sank all of a sudden
C.
the badly damaged ship Leaned toward one side
D.
the frightened passengers fought desperately for lifeboats
相关题目：
【单选题】The report came to the British on May 21, 1941. The German battleship Bismarck, the most 1 warship in the world, was moving out into the Atlantic Ocean. Her task: to destroy the ships 2 suppli...
A.
end
B.
sea
C.
fight
D.
day
【简答题】质量为M的快艇携带一颗质量为m的鱼雷，两者一起以速度v向前运动．快艇沿前进方向发射鱼雷后，速度减为原来的 1 3 ，不计水的阻力，则鱼雷的发射速度为（ ）
A.
2M+3m 3m v
B.
2M 3m v
C.
4M-m 3m v
D.
4M 3m v
【单选题】Part ADirections: Read the following four texts．Answer the questions below each text by choosing A, B, C or D ．Mark your answers on ANSWER SHEET 1.It was the worst tragedy in maritime (航海的) history, s...
A.
It was attacked by Russian torpedoes.
B.
Most of its passengers were frozen to death.
C.
Its victims were mostly women and children.
D.
It caused the largest number of casualties.
【单选题】It was the worst tragedy in maritime (航海的) .history, six times more deadly than the Titanic. When the German cruise ship Wilhelm Gustloff was hit by torpedoes (鱼雷) fired from a Russian submarine in th...
A.
a strong ice storm tilted the ship
B.
the cruise ship sank all of a sudden
C.
the badly damaged ship Leaned toward one side
D.
the frightened passengers fought desperately for lifeboats
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