简述销售者承担质量担保责任的方式。
参考答案：
修理，更换，退货，赔偿损失。
______ pollution control measures are expensive, many industries hesitate to adopt them.
A．Although
B．However
C．Because
D．On account of
急性皮炎、糜烂结痂时宜选用的外用药是
A．振荡剂
B．粉剂
C．软膏
D．糊剂
E．溶液
