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【单选题】
液压系统油箱内设隔板是为了( )A.
增强刚度
B.
减轻油面晃动
C.
防止油漏光
D.
利于散热和分离杂质
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【简答题】色彩主要分为两类:____________和___________。
【简答题】Passage 1-Why I Like Japanese Food.docx
【单选题】According to the passage, why is exercise important?
A.
Because it is a fashion.
B.
Because it is popular among the young.
C.
Because it is good for our health.
D.
Because it is not good for children.
【简答题】Passage1 Why don't birds get lost on their long flights from one place to another? Scientists have puzzled over this question for many years. Now they're beginning to fill in the blanks. Not long ago,...
【单选题】关于氨基酸,下列描述正确的是( )
A.
组成和结构不同的氨基酸具有相近的等电点
B.
氨基酸的构型常采用 R/S 标记法
C.
氨基酸分子中含有氨基和羧基，因此具有羧酸与胺类化合物的性质
D.
氨基酸分子很稳定，一般不与酸或碱反应
【单选题】FURTHER LISTENING PASSAGE 1 Why is dating rare in Afghanistan ? A . Because dating is illegal. B . Because boys and girls spend all their time studying. C . Because girls are not allowed to go out wit...
A.
B.
C.
D.
D
【简答题】Passage1 Why don't birds get lost on their long flights from one place to another? Scientists have puzzled over this question for many years. Now they're beginning to fill in the blanks. Not long ago,...
【单选题】passage 2 passage 1 1 Why would poor people rank their relationships according to their importance?
A.
A They want to find delight in relationships.
B.
B They rely on others to get by.
C.
C They hope to be bound to others closely.
D.
They have limited resources at hand.
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