丁腈橡胶具有优良的耐油,耐高温的性能,合成丁腈橡
胶的原料是( )
(1)CH2=CH-CH=CH2 (2)CH3-CC-CH3 (3)CH2=CH-CN
(4)CH2-CH=CH-CN (5)CH3-CH=CH2 (5)CH3-CH=CH-CH3
A.(3)(6) | B.(2)(3) | C.(1)(3) | D.(4)(5) |
丁腈橡胶具有优良的耐油,耐高温的性能,合成丁腈橡
胶的原料是( )
(1)CH2=CH-CH=CH2 (2)CH3-CC-CH3 (3)CH2=CH-CN
(4)CH2-CH=CH-CN (5)CH3-CH=CH2 (5)CH3-CH=CH-CH3
A.(3)(6) | B.(2)(3) | C.(1)(3) | D.(4)(5) |
试题篮
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