34.某烷類其结構如下,IUPAC的命名為: 
(A) 2,3,4-trimethylpentane
(B)1 2,3-trimethylbutane
(C) 2,3-dimethylpentane
(D)2-isopropylbutane
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統計: A(11), B(14), C(221), D(5), E(0) #1073852
統計: A(11), B(14), C(221), D(5), E(0) #1073852