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【简答题】
在自由基聚合过程中,除了链增长的过程,还存在链转移的过程,通常链转移将导致聚合度______(变大或变小),为了得到低分子量的聚合物而加入链转移剂的反应称为______。
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参考答案:
举一反三
【简答题】阅读理解(七选五):阅读下面短文,从所给A---G中,选择合适的短语或句子填空 Losing weight is tough.For most people, it requires a change in diet, a change in exercise habits, and a change in attitude. 1 ● Set healthy goals. If you ’ re ...
【判断题】If a huge percentage change in price leads to a small percentage change in quantity demanded, then demand is said to be elastic.
A.
正确
B.
错误
【单选题】If demand hardly changes with a small change in price, we say demand is________.
A.
elastic
B.
inelastic
C.
flexible
D.
static
【单选题】If demand hardly changes with a small change in price, we say demand is________.
A.
inelastic
B.
elastic
C.
static
D.
flexible
【判断题】If a huge percentage change in price leads to a small percentage change in quantity demanded, then demand is said to be inelastic.
A.
正确
B.
错误
【单选题】If demand changes considerably, with a small change in price, the demand is said to be ________.
A.
marginal
B.
inelastic
C.
flexible
D.
elastic
【单选题】观察颅脑损伤病人生命体征的顺序是
A.
脉搏、呼吸、血压
B.
呼吸、脉搏、血压
C.
脉搏、血压、呼吸
D.
呼吸、血压、脉搏
E.
血压、脉搏、呼吸
【单选题】If demand hardly changes with a small change in price, we say that the demand is ________.
A.
equal
B.
marginal
C.
inelastic
D.
elastic
E.
none of the above
【单选题】观察颅脑损伤病人生命体征的顺序是
A.
脉搏.呼吸.血压
B.
呼吸.脉搏.血压
C.
脉搏.血压.呼吸
D.
呼吸.血压.脉搏
【判断题】If demand hardly changes with a small change in price, the demand is said to be elastic.
A.
正确
B.
错误
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