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举一反三
【简答题】For Norman, which of the following statements about problems is NOT true?A. Problems are actually a sign of life. B. Problems should be removed as quickly as possible C. Problems are nothing to be afr...
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【单选题】关于铸件的几种凝固方式下列说法正确的是( )
A.
纯金属和合金一般发生逐层凝固
B.
宽结晶温度范围合金不发生逐层凝固
C.
体积凝固铸件组织细密，热烈纹倾向小
D.
相比金属型，砂型更有利于发生逐层凝固
查看完整题目与答案
【单选题】Which of the following statements is NOT true about the principal reasons for the absence of common law b efore the Norman Conquest ?
A.
There was no any national judicial machinery to require it.
B.
There was no any centralizing institution to unify the unwritten and variable customs.
C.
There was no any lawyer to apply it.
D.
England was governed by uniform and settled law.
查看完整题目与答案
【单选题】Which of the following facts was NOT one of the reasons for the Norman Conquest?
A.
Edward the Confessor had promised William, the Duke of Normandy to be his heir.
B.
William was Edward's cousin.
C.
Harold had not been chosen by the Witan.
D.
Harold was appointed by Edward the Confessor in England.
查看完整题目与答案
【单选题】命名羧酸 ( ) 。 a β-丁酮酸 b 3-丁酮酸 c 乙酰乙酸 d 3-氧代丁酸
A.
a、b、c、d
B.
a、c、b、d
查看完整题目与答案
【单选题】Which of the following facts was NOT one of the reasons for the Norman Conquest?
A.
Edward the Confessor had promised William, the Duke of Normandy to be his heir.
B.
William was Edward's cousin.
C.
Harold had not been chosen by the Witan.
D.
Harold was appointed by Edward the Confessor in England.
查看完整题目与答案
【单选题】不属于铸件凝固方式的是
A.
逐层凝固
B.
顺序凝固
C.
糊状凝固
D.
中间凝固
查看完整题目与答案
【单选题】For Norman, which of the following statements about problems is NOT true?
A.
Problems are actually a sign of life.
B.
Problems should be removed as quickly as possible.
C.
Problems are nothing to be afraid of.
D.
Problems are not necessarily something negative.
查看完整题目与答案
【判断题】铸件中的缩孔是由于合金的液态收缩和凝固收缩得不到金属液的补充而产生的，缩孔的形成与逐层凝固方式有关。
A.
正确
B.
错误
查看完整题目与答案
【单选题】关于铸件的几种凝固方式下列说法正确的是( )
A.
纯金属和窄结晶温度范围合金一般发生逐层凝固
B.
结晶温度范围合金不发生逐层凝固
C.
体积凝固铸件组织细密，热烈纹倾向小
D.
相比金属型，砂型更有利于发生逐层凝固
查看完整题目与答案
相关题目：
【简答题】For Norman, which of the following statements about problems is NOT true?A. Problems are actually a sign of life. B. Problems should be removed as quickly as possible C. Problems are nothing to be afr...
查看完整题目与答案
【单选题】关于铸件的几种凝固方式下列说法正确的是( )
A.
纯金属和合金一般发生逐层凝固
B.
宽结晶温度范围合金不发生逐层凝固
C.
体积凝固铸件组织细密，热烈纹倾向小
D.
相比金属型，砂型更有利于发生逐层凝固
查看完整题目与答案
【单选题】Which of the following statements is NOT true about the principal reasons for the absence of common law b efore the Norman Conquest ?
A.
There was no any national judicial machinery to require it.
B.
There was no any centralizing institution to unify the unwritten and variable customs.
C.
There was no any lawyer to apply it.
D.
England was governed by uniform and settled law.
查看完整题目与答案
【单选题】Which of the following facts was NOT one of the reasons for the Norman Conquest?
A.
Edward the Confessor had promised William, the Duke of Normandy to be his heir.
B.
William was Edward's cousin.
C.
Harold had not been chosen by the Witan.
D.
Harold was appointed by Edward the Confessor in England.
查看完整题目与答案
【单选题】命名羧酸 ( ) 。 a β-丁酮酸 b 3-丁酮酸 c 乙酰乙酸 d 3-氧代丁酸
A.
a、b、c、d
B.
a、c、b、d
查看完整题目与答案
【单选题】Which of the following facts was NOT one of the reasons for the Norman Conquest?
A.
Edward the Confessor had promised William, the Duke of Normandy to be his heir.
B.
William was Edward's cousin.
C.
Harold had not been chosen by the Witan.
D.
Harold was appointed by Edward the Confessor in England.
查看完整题目与答案
【单选题】不属于铸件凝固方式的是
A.
逐层凝固
B.
顺序凝固
C.
糊状凝固
D.
中间凝固
查看完整题目与答案
【单选题】For Norman, which of the following statements about problems is NOT true?
A.
Problems are actually a sign of life.
B.
Problems should be removed as quickly as possible.
C.
Problems are nothing to be afraid of.
D.
Problems are not necessarily something negative.
查看完整题目与答案
【判断题】铸件中的缩孔是由于合金的液态收缩和凝固收缩得不到金属液的补充而产生的，缩孔的形成与逐层凝固方式有关。
A.
正确
B.
错误
查看完整题目与答案
【单选题】关于铸件的几种凝固方式下列说法正确的是( )
A.
纯金属和窄结晶温度范围合金一般发生逐层凝固
B.
结晶温度范围合金不发生逐层凝固
C.
体积凝固铸件组织细密，热烈纹倾向小
D.
相比金属型，砂型更有利于发生逐层凝固
查看完整题目与答案