A. 36 B. 46 C. 64 D. 74
A. 1-methylethyl B. 1-methylpropyl C. 2-methylethyl D. 2-methylpropyl
A. 1234 B. 1243 C. 1324 D. 1423
A. CH3CH2C(CH3)2OH B. CH3CH2CH(CH3)OH CH3CH2C6H4OH D. CH3CH2CH2OH
A. 对 B. 错