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【判断题】
热芯盒工艺中的呋喃I型树脂砂的强度高低，主要决定于树脂本身的性质，但也与质量、芯盒温度、混制质量等有关。A.
正确
B.
错误
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举一反三
【单选题】阿托品在碱性溶液中易水解失效,是因其分子结构中含有( C )。 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
酰胺键
B.
苯
C.
酯键
D.
托品酸
E.
托烷
【简答题】When do you think of a forest, what do you see? Just trees Or do you see many other things, such as singing birds, colorful plants and wild flowers? The forest is a whole world of its own. It is full ...
【简答题】When do you think of a forest, what do you see? Just trees? Or do you see many other things, such as singing birds, colorful plants and wild flowers? The forest is a whole world of its own. It is full...
【简答题】阅读理解。 When do you think of a forest, what do you see? Just trees Or do you see many other things, such as singing birds, colorful plants and wild flowers? The forest is a whole world of its own. It is...
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