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【简答题】
下列有机高分子材料改性的方法中，属于化学改性的是( )。 (a) 苯乙烯-二乙烯苯共聚物经磺化制取阳离子交换树脂 (b) 苯乙烯-丁二烯、丙烯腈加聚成ABS树脂 (c) 丁苯橡胶与聚氯乙烯共混 (d) 聚氯乙烯中加入增塑剂
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举一反三
【单选题】Conversation Two Questions 6 to 10 are based on Conversation Two.
A.
Hold a party at home.
B.
Introduce ourselves first.
C.
Avoid meeting them.
D.
Wait for them to visit us.
【简答题】Conversation Two Questions 6 to 10 are based on Conversation Two.
【简答题】Conversation Two
【单选题】Conversation Two
A.
Because Blooms has a cafe.
B.
Because Blooms offers two free classes.
C.
Because Blooms has tennis courts.
D.
Because Blooms has a pool.
【简答题】Conversation Two
【简答题】Conversation Two
【单选题】Conversation Two
A.
Processing meat.
B.
Cooking processed meat.
C.
Neither processing meat nor cooking processed meat.
D.
These two parts can ’ t be further divided.
【单选题】Conversation Two
A.
It is a test for people from 15 to 65 years old.
B.
It is organized every two years.
C.
It has been conducted for more than 200 years.
D.
It tests reading, math and science.
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