在酸性染料中，（）类染料结构最复杂。
A、强酸浴染色酸性染料
B、弱酸浴染色酸性染料
C、中性浴染色酸性染料
参考答案：C
All of us went to the park ______ Bob. He had to look after his sister.
A．besides
B．with
C．except
D．around
直接套汇
