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【单选题】
加聚反应的特征是( )A.
反应中有附加产物产生
B.
反应前后单体个数相同
C.
形成高聚物的形态是体型
D.
形成的高聚物带有支链
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反馈参考答案：
举一反三
【单选题】The company was financially ______ and almost went to bankruptcy during last year's economic recession.
A.
corrupt
B.
cornered
C.
ingredient
D.
covered
【多选题】旅游业对目的地经济的积极作用主要表现在。
A.
增加外汇，平衡国际收支
B.
带动当地房价和物价的上涨
C.
增加就业机会
D.
推进科学技术交流和发展
E.
增加政府收入
【判断题】Not all the students can live on campus during the university year.9：Not all the students can live on campus during the university year.
A.
正确
B.
错误
【简答题】The number of goods sold went up only a small amount during the year.
【单选题】During the students’ first teacher training year, they often visited schools for the _____ of lessons.
A.
examination
B.
investigation
C.
inspection
D.
observation
【单选题】During the Spring Festival, the _____ family will reunite and celebrate the arrival of the new year happily. [ ]
A.
extended
B.
expanded
C.
registered
D.
revived
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