【简答题】
A、I<sub>0sub>/4 B、√3I<sub>0sub>/4 C、√3I<sub>0sub>/2 D、I<sub>0sub>/8 E、3I<sub>0sub>/8
A、C<sub>20sub>到C<sub>36sub> B、C<sub>4sub>到C<sub>10sub> C、C<sub>10sub>到C<sub>15sub> D、C<sub>15sub>到C<sub>20sub>
A、C<sub>8sub>H<sub>5sub>O<sub>2sub> B、C<sub>8sub>H<sub>4sub>O<sub>3sub> C、C<sub>8sub>H<sub>4sub>O<sub>2sub> D、C<sub>8sub>H<sub>6sub>O<sub>3sub>