良溶剂是指溶剂分子与聚合物分子链段间的吸引作用大于聚合物链段间的吸引作用的溶剂，此时聚合物分子链在溶液中呈（）状态。
参考答案：伸展
—I want to see the film. Would you like to go with me?
—____
A．Certainly, I like .
B．Yes. I’d like to.
C．Yes, I would.
D．No, I’d like to.
