皮皮学，免费搜题
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搜题
【单选题】
浆皮面主坯由糖浆或饴糖与面粉调制而成，它既有适度的( )，又有良好的( )。
A.
弹性 可塑性
B.
弹性韧性
C.
韧性延伸性
D.
延伸性可塑性
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α-羟基蒽醌
B.
1，5-二羟基蒽醌
C.
2，6-二羟基蒽醌
D.
β-羟基蒽醌
E.
1，2-二羟基蒽醌
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【单选题】Research has shown that—in both sexes and across numerous cultures—attractive people are judged to be smarter, kinder, more honest and【C1】______. With some regularity we hear about the latest beauty c...
A.
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selfish
C.
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D.
handsome
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【单选题】羟基蒽醌中，酸性最强的是
A.
1-羟基蒽醌
B.
2-羟基蒽醌
C.
1，2-二羟基蒽醌
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1，8-二羟基蒽醌
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3，6-二羟基蒽酉昆
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【简答题】Fill in the blanks with words and phrases below. Change the form where necessary. donate bring to mind endeavor emerge feature interpret enroll in generate ...
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【单选题】羟基蒽醌中,酸性最强的是:
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1-羟基蒽醌
B.
2-羟基蒽醌
C.
1,2-二羟基蒽醌
D.
3,6-二羟基蒽醌
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【简答题】C Having a meal is an easy and delightful process for most people. However, for a woodpecker( 啄木鸟 ) , it's not that . To get dinner, a woodpecker has to hit its head against a tree numerous tim...
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1-羟基蒽醌
B.
2-羟基蒽醌
C.
1，2-二羟基蒽醌
D.
1，3-二羟基蒽醌
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【单选题】羟基蒽醌中，酸性最强的是
A.
1-羟基蒽醌
B.
2-羟基蒽醌
C.
1，2-二羟基蒽醌
D.
1，8-二羟基蒽醌
E.
3，6-二羟基蒽醌
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【单选题】下列化合物中，酸性最强的是；
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【单选题】羟基蒽醌中,酸性最强的是:
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