加成反应:指不饱和烃的π键断裂,两个一价的原子或原子团加到不饱和键的两个碳原子上的反应。
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下列化合物中,可用来合成加聚物的是( )
A.CH3Cl
B. C2F4
CH2=CH-CH=CH2
D. C3H8
The root morph/o means:
A.reproduction
B.fat
C.form
D.balance
The suffix in prostatectomy and thyroidectomy means:
A. inflammation
B. removal or excision
C. incision into
D. study of
A compound that speeds the rate of a metabolic reaction is a(n):
A.gene
B.salt
C.mineral
D.enzyme