A、(CH<sub>3sub>)<sub>3sub>C-OH B、CH<sub>3sub>CH<sub>2sub>CHOHCH<sub>3sub> C、CH<sub>3sub>CH<sub>2sub>CH<sub>2sub>CH<sub>2sub>OH
A、(CH<sub>3sub>)<sub>3sub>C-OH B、CH<sub>3sub>CH<sub>2sub>CHOHCH<sub>3sub> C、CH<sub>3sub>CH<sub>2sub>CH<sub>2sub>CH<sub>2sub>OH
A、CH<sub>3sub>OH B、CH<sub>3sub>CH<sub>2sub>OH C、(CH<sub>3sub>)<sub>2sub>CHOH D、(CH<sub>3sub>)<sub>3sub>COH
A、-SO<sub>3sub>H B、CH<sub>3sub>-CH<sub>2sub>-COONH<sub>4sub> C、CH<sub>3sub>—OH D、CH<sub>3sub>—CH<sub>2sub>OH
A、(CH<sub>3sub>)<sub>3sub>CCH<sub>2sub>OH B、(CH<sub>3sub>)<sub>3sub>C-OH C、CH<sub>3sub>CH(OH)CH<sub>3sub> D、
A、CH<sub>3sub>CH<sub>2sub>COOH B、CH<sub>3sub>COOCH<sub>3sub> C、CH<sub>3sub>(CH<sub>2sub>)<sub>2sub>CH<sub>2sub>OH D、CH<sub>3sub>CH<sub>2sub>OCH<sub>2sub>CH<sub>3sub> E、HCOOCH<sub>2sub>CH<sub>3sub>
A、CH<sub>3sub>CH<sub>2sub>CH<sub>2sub>OH B、CH<sub>3sub>CH<sub>2sub>OH C、C<sub>6sub>H<sub>5sub>OH D、
A、CH<sub>3sub>CHO B、CH<sub>3sub>CH<sub>2sub>COOH C、CH<sub>3sub>CH<sub>2sub>OH D、CH<sub>3sub>COCH<sub>3sub>
A、CH<sub>3sub>OCH<sub>3sub> B、CH<sub>3sub>COOH C、CH<sub>3sub>CH<sub>2sub>OH D、CH<sub>3sub>CHO
A、(CH<sub>3sub>)<sub>4sub>N+OH- B、(CH<sub>3sub>)<sub>4sub>N+Cl- C、(CH<sub>3sub>)<sub>3sub>NH+Cl- D、(CH<sub>3sub>)<sub>2sub>NH<sub>2sub>+OH-