芳香成分的变化对酒味的影响?

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问题:

芳香成分的变化对酒味的影响?

考点:品酒师考试品酒师考试题库
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酶法测定血清TG的反应中间产物有()

A.胆固醇

B.甘油

C.脂肪酸

D.磷脂

E.糖脂

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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多

余选项。

In times of economic downturn, many people start to look for ways to reduce their household budget and save extra cash. Living a thrifty (节俭的) lifestyle does not have to mean doing nothing.   小题1:   Here are some tips.

Track your spending for at least 2 weeks. You won’t really know how to live a thriftier lifestyle until you know where your money is going. Write down every time you spend money and take a look at it at the end of the month.  小题2:

Search the Internet when you have to buy something. Because of the easy access to information, you can compare prices from more stores in less time.

 小题3: Combining producers’ coupons (优惠券) with store discounts can lead to major savings.

Turn off the lights and other electronics in your home when you are not using them. 小题4:   Leaving electronics on can use a tremendous amount of extra energy, costing you money.

 小题5:  When you do have to go out, look for available deals and discounts. If you are a frequent restaurant diner, consider purchasing a guide book for local restaurants, which will help you save money.

A.Eat at home as often as possible.

B.You probably don’t really need 500 channels.

C.If you really can’t live without it, call the company.

D.Open a window and let in the natural light instead.E. In this way, you will see obvious ways to reduce the small daily expenses.

F. So check your local stores as well as online providers to find the best price.

G. Instead, making small changes will allow you to save money and still enjoy yourself.

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以淀粉A为原料可以制得有茉莉花香味的H,现按以下方式进行合成该香料(方框中A、B、C、D、E、F均为有机物,同时方框中某些无机产物省略)

已知:RCH2Cl+NaOHRCH2OH+NaCl

请回答下列问题:

(1)A的化学式为______,B的名称为______。

(2)写出①②的反应类型:①______,②______。

(3)C→D的化学方程式为______,

(4)F+E→H的化学方程式为______,

(5)写出C的两种同分异构体的结构简式______、______。

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第一次工业革命发明和使用的机器中,有一项发明是所有发明付诸实践的最关键因素,被称为“工业城市之母”.这项发明是(  )

A.珍妮纺纱机

B.改良蒸汽机

C.火车机车

D.轮船

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