夏季到了，各式各样的美味雪糕大量上市．生产雪糕的公司在制造苹果味道的雪糕过程中，要用到食用苹果香精．苹果香精的名称是戊酸甲脂，化学式为C₆H₁₂O₂，是有苹果芳香味、难溶于水的液态有机化合物．根据以上叙述回答下列问题：

（1）苹果香精的物理性质______；

（2）苹果香精（C₆H₁₂O₂）中碳、氢、氧元素的质量比为______；

（3）苹果香精除作调味剂用于食品生产外，还有哪些用途（只写一条）______．

I always have a difficult time choosing original birthday presents. My imagination never seems to get beyond ties, handkerchiefs, or pairs of socks. But, strangely enough, it did not take me long to decide on Tom’s birthday present. For the first time in my life I had a good idea--I would buy him a bottle of champagne. Before the party began, Tom suggested that I should open the bottle. I put it between my knees and began to pull, but it remained firmly corked. Soon a crowd gathered round to watch the fight between me and the bottle. I could hear all sorts of" helpful" suggestions from the guests like "Break the top off", "Use your teeth!" etc. But I was losing the bottle. We were struggling on the floor together, when all of a sudden there was a loud "pop!" and the cork shot up into the air, while the angry bottle showered everybody with champagne!

Which is NOT true

A．It was Tom who suggested that I open the bottle.

B．I opened it easily without any help.

C．I put it between my knees and began to pull.

D．The guests gave me many helpful suggestions.