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【单选题】
人体血红蛋白中含有Fe2+离子，如果误食亚硝酸盐，会使人中毒，因为亚硝酸盐会使Fe2+离子转变为Fe3+离子，生成血红蛋白而丧失与O2结合的能力。服用维生素C11可缓解亚硝酸盐的中毒，主要由于维生素C具有（）
A.
酸性
B.
碱性
C.
氧化性
D.
还原性
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举一反三
【单选题】One salesman thought that ______.
A.
the author was more of an observer than a real member of the store
B.
what the author had said was far from the troth
C.
the author tried to get a person to buy the furniture dishonestly
D.
the writer destroyed a four-foot six-inch spring mattress
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【判断题】Of the several commonly used ogies discussed in the essay, the one Hill dislikes most is that comparing the teacher to the salesman.
A.
正确
B.
错误
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【单选题】分段式溜井每段溜井下部均要设( ),其生产管理、维护、检修较复杂。
A.
缓冲层
B.
溜口闸门
C.
卸矿口
D.
矿仓
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【单选题】（2）分段式溜井每段溜井下部均要设（ ），其生产管理、维护、检修较复杂。
A.
缓冲层
B.
溜口闸门
C.
卸矿口
D.
矿仓
查看完整题目与答案
【单选题】The salesman of that company succeeded ______ selling their new products.
A.
off
B.
to
C.
at
D.
in
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【简答题】Why should the salesman place the carton of fries with the McDonald’s name facing the customer? By doing that ,the customers could__________.
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【简答题】水泥浆在硬化混凝土中水泥石起( )作用,砂石起( )作用。
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【单选题】在硬化混凝土中,水泥石起( )作用。
A.
骨架
B.
填充
C.
润滑
D.
胶结
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【单选题】术解的意思是指对技艺的理解和掌握,这个门类下包括了占卜、医药和?
A.
音乐
B.
艺术
C.
病理
D.
文学
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【单选题】The salesman told me (that) a good pair of glasses (were) supposed (to last) (at least) 3 to 4 years.
A.
that
B.
were
C.
to last
D.
at least
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【单选题】One salesman thought that ______.
A.
the author was more of an observer than a real member of the store
B.
what the author had said was far from the troth
C.
the author tried to get a person to buy the furniture dishonestly
D.
the writer destroyed a four-foot six-inch spring mattress
查看完整题目与答案
【判断题】Of the several commonly used ogies discussed in the essay, the one Hill dislikes most is that comparing the teacher to the salesman.
A.
正确
B.
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查看完整题目与答案
【单选题】分段式溜井每段溜井下部均要设( ),其生产管理、维护、检修较复杂。
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D.
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【单选题】（2）分段式溜井每段溜井下部均要设（ ），其生产管理、维护、检修较复杂。
A.
缓冲层
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D.
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【单选题】The salesman of that company succeeded ______ selling their new products.
A.
off
B.
to
C.
at
D.
in
查看完整题目与答案
【简答题】Why should the salesman place the carton of fries with the McDonald’s name facing the customer? By doing that ,the customers could__________.
查看完整题目与答案
【简答题】水泥浆在硬化混凝土中水泥石起( )作用,砂石起( )作用。
查看完整题目与答案
【单选题】在硬化混凝土中,水泥石起( )作用。
A.
骨架
B.
填充
C.
润滑
D.
胶结
查看完整题目与答案
【单选题】术解的意思是指对技艺的理解和掌握,这个门类下包括了占卜、医药和?
A.
音乐
B.
艺术
C.
病理
D.
文学
查看完整题目与答案
【单选题】The salesman told me (that) a good pair of glasses (were) supposed (to last) (at least) 3 to 4 years.
A.
that
B.
were
C.
to last
D.
at least
查看完整题目与答案