不久前，我到一朋友家赴宴，在开启啤酒时，啤酒瓶突然爆炸，将我左眼炸伤，我当即被送到县医院治疗，花去医疗费1万余元。为此，我找商家索赔。商家认为酒瓶爆炸多半属于厂家质量问题，并以我没有申请鉴定、啤酒瓶爆炸原因不明为由，拒绝赔偿。请问，未作酒瓶爆炸原因鉴定，商家可以拒绝受害消费者的索赔吗？
Questions 26 to 35 are based on the following passage.
The method for making beer has changed over time. Hops (啤酒花)，for example, which give many a modem beer its bitter flavor, are a (26)__ recent addition to the beverage. This was first mentioned in reference to brewing in the ninth century. Now, researchers have found a (27)__\__ingredient in residue (残留物)from 5,000-year-old beer brewing equipment. While digging two pits at a site in the central plains of China, scientists discovered fragments from pots and vessels. The different shapes of the containers (28)___ they were used to brew, filter, and store beer. They may be ancient “beer-making tools,” and the earliest (29___ evidence of beer brewing in China, the researchers reported in the Proceedings of the National Academy of Sciences. To (30)__ that theory, the team examined the yellowish, dried (31)__ inside the vessels. The majority of the grains, about 80%, were from cereal crops like barley (大麦),and about 10% were bits of roots, (32)__\_lily,which would have made the beer sweeter, the scientists say. Barley was an unexpected find: the crop was domesticated in Western Eurasia and didn&39;t become a (33)____\_food in central China until about 2,000 years ago, according to the researchers. Based on that timing, they indicate barley may have (34)___ in the region not as food, but as (35)_____material for beer brewing.
A) Arrived
B) consuming
C) direct
D) exclusively
E) including
F) inform
G) raw
H) reached
I) relatively
J) remains
K)resources
L) staple
M) suggest
N) surprising
O) test
在啤酒灌装中，氧的存在是影响啤酒质量的主要因素，试说明灌装设计中，采用哪些方法措施，能减少啤酒瓶和酒中的氧的含量？
