浓香型白酒的香味分以()成分占绝对优势,无论有数量上还是在含量上都居首位,酯类成分约

题型:填空题

问题:

浓香型白酒的香味分以()成分占绝对优势,无论有数量上还是在含量上都居首位,酯类成分约占香味成分问题的60%;其次是(),约占总含量的14%~16%;()占第三位,约为总量的12%;()(不含乙缩醛)则占总量的6%~8%;其他类物质仅占总量的1%~2%。

考点:品酒师考试品酒师考试题库
题型:填空题

下面有关“贞观之治”出现的原因,不正确的是:(   )

A.唐太宗认真吸取隋朝灭亡的教训,轻徭薄赋

B.唐太宗鼓励臣下直言,虚心纳谏

C.唐太宗知人善任,尽量做到唯才是举

D.唐太宗创立科举制

题型:填空题

阅读理解。

     When I was a child, I often dreamed of the time when I could leave home and escape to the city. We lived

on a farm. In the winter especially, we wear quite out off from the outside world. As soon as I left school, I

packed my bags and moved to the capital. However, I soon discovered that my life has its too.

     One big disadvantage is money. It costs so much to go out, not to mention basics like food and housing.

Another disadvantage is pollution. I suffer from asthma (哮喘), and the air is so that I am afraid to go outside.

Then there is the problem of traveling round. Although I have a car, I seldom use it became of the traffic jams.

One choice is to go by bicycle, but that can be quite dangerous.

     Of course there are advantages. First, there is so much to do in the city, whatever you tastes in culture or

entertainment (娱乐活动). Besides, there are wonderful jobs and greater chances of moving to a more important

job or position. Finally, if you like shopping, the variety of goods is very surprising-and, what is more, shops

are often only a short walk away.

     Is life better then, in the city? Perhaps it is, when you are in your teens (十几岁) or twenties. However, as

you get older, and especially if you have small children, the peace of the countryside may seem preferable. I

certainly hope to move back there soon.

1. What was the writer always thinking about when he was a child?

A. Staying on the farm.

B. Moving to the countryside.

C. Leaving home for the city.

D. Running away from the school.

2. Which of the following is true about the writer?

A. He is very old now.

B. He is in good health.

C. He prefers driving a car.

D. He lives in the city now.

3. In the passage, the writer tries to _____.

A. express his opinions about way of life

B. describe his life in the countryside

C. an interest in the outside world

D. persuade the reader to live in the city

4. How is the passage mainly developed?

A. By inferring.

B. By comparing.

C. By listing examples.

D. By giving explanations.

题型:填空题

装药空囊

题型:填空题

抽样调查是目前项目评估中常用的一种市场调查方法。

题型:填空题

由于JL474Q活塞承受的气体压力和惯性力是周期变化的,故活塞不同部分会()

A、拉伸

B、压缩

C、弯曲载荷

D、变形

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