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【判断题】
如果Aw高于微生物发育所必需的最低Aw,微生物即可导致食品变质。( )
A.
正确
B.
错误
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【简答题】A long time ago, there was an emperor. He had a beautiful garden. In the garden, there was a little nightingale ( 夜莺 )( 1 ) very beautifully. One day, the emperor( 2 ) this little bird's beautiful voi...
【简答题】I don’t think Jack is ______ foolish. He is really a clever boy. A. quite B. fairly C. that D. rather 2. Few pleasures can equal _________ of a cool drink on a hot day. A. some B. any ...
【简答题】用so...that...和such...that...填空:1. He ed English _______ well ________ he was able to write long articles in English.2. Pingpong is ________ a popular ________ people all over the world play...
【简答题】Last year Tom left school. He came to ei to (1)______ a job. He went from one company to another but (2)_____ wanted him. Now he had little money. He had to go back to his small town. So he came t...
【单选题】液压油在液压系统中的主要作用是( )。
A.
润滑
B.
冷却
C.
清洁
D.
传递压力能
【简答题】You will see so many seats only at a stadium in Beijing. (Only...) 2. I have seldom seen a situation ( 情况 ) which made me so angry. (Seldom ... ) 3. We little realized the ers that were awaiting ...
【多选题】溢流阀在液压系统中的主要作用是()
A.
限制系统最高压力
B.
限制系统最低压力
C.
保持系统压力基本恒定
【多选题】工作介质在液压系统中的主要作用是:
A.
带走污物
B.
传递能量
C.
带走热量
D.
润滑
【简答题】Along time ago, there was an emperor. He had a beautiful 1 . In the garden, there was a little nightingale( 夜莺 ) singing very beautifully. One day, the emperor heard about this little bird's beautiful...
【简答题】教材与语法填空 The first time Elias met Nelson . he was twelve Iyears old. At that time, was the black 1 . (law )who offered 2 . (guide )to poor black people who were in trouble. Elias need...
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