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【单选题】
舱盖的启靠( )A.
液压装置
B.
船上或港口起货机械进行
C.
绞索钢索驱动
D.
舱盖本身机械
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【单选题】They are found in a multitude of colours making them the most beautiful frog specie.
A.
a kind of
B.
a set of
C.
a part of
D.
an array of
【简答题】Imagine an animal that becomes frozen in cold weather. Then, when it gets warmer, the animal simply unfreezes and goes back to its normal life. Although this may sound like something from a science-fi...
【简答题】Experts say the American state of Hawaii has been invaded (入侵)by a small frog called the coqui (ko--kee). There may be millions of the small frogs in Hawaii. However, they do not belong there. They ar...
【简答题】The frog found a ____, the cat found a ____, the bird found a ____ and the dog found a _____.
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