药物在固体分散体中存在的状态有（）（）（）
参考答案：分子；胶态；微粒（微晶、微滴）；无定型
. You have made a few spelling mistakes in your composition, but it is well written_______.
A．on a whole
B．as a whole
C．general speaking
D．as the whole
乙炔瓶使用时必须保持（）状态。
