为了解决鲜肉、鲜鱼在流通中保鲜及装卸搬运的问题,采取低温冻结方式的加工。这属于()。

题型:单项选择题

问题:

为了解决鲜肉、鲜鱼在流通中保鲜及装卸搬运的问题,采取低温冻结方式的加工。这属于()。

A.生鲜食品的冷冻加工

B.分选加工

C.农副产品的精制加工

D.分装加工

考点:物流知识竞赛物流知识竞赛题库
题型:单项选择题

阅读理解。

     Taking an after-school class will give you a head start in high school. But if it means walking home

every day, even in snow and rain, would you do it?

     I did. I took part in an after-school Spanish class. Because it was after school, no school buses were

there to take me home when the class ended. And my parents couldn't pick me up, so I had to walk home.

     At first I hated the walk because of the long distance. But after a few months, I got used to (习惯于)

it and it became one of my daily activities, like getting dressed and brushing my teeth. And I began to

enjoy it. I got to see things like birds flying and trees changing color. A few times I saw something very

special, like a small snake near the sidewalk, or two cars that came very close to crashing!

     Many of my classmates saw what I did. Once, one girl in my class asked her mother to drive me

home because it was raining outside, and I didn't have an umbrella (雨伞). Some people who I didn't

know even gave me a ride - they thought it was too cold out.

     People always think walking long distances is difficult. Modern technology (技术) makes common

things, like walking, seem impossible. Many people, like myself, live in the country and are close to

nature, but also far away from it because of technology.

1. What class did the writer take part in after school?

A. Math class    

B. Spanish class  

C. Art class

D. English class

2. When did the writer begin to enjoy walking home?

A. At the very beginning.    

B. After a week.  

C. After a few months.      

D. After a year.

3. Why did the writer begin to enjoy walking home?

A. Because something interesting happened on the road every day.

B. Because the writer could get a ride from some strange people.

C. Because the writer enjoyed walking in the rain alone.

D. Because the writer could enjoy some interesting things happening on the road.

4. When it was a rainy or snowy day, ______.

A. some kind people would give him a ride

B. nobody saw him and nobody helped him

C. the writer would choose to stay at school

D. the writer's parents would come to pick him up

5. What does the last paragraph want to tell us?

A. It is difficult for many people to walk long distances.

B. Modern technology brings people a lot of inconvenience (不方便).

C. Modern technology makes people live better, but farther from the nature.

D. It is impossible for people to walk a long distance nowadays.

题型:单项选择题

某同学捉到一只青蛙,并把它放到有较多水的鱼缸中,准备精心饲养,观察蛙的活动,可第二天蛙就死掉了,蛙死亡的原因是

A.水质有问题

B.无法呼吸到充足的氧气

C.饥饿

D.惊吓

题型:单项选择题

在高血压发病过程中占主导地位的是

A.高级神经中枢功能失调

B.小血管痉挛

C.水钠潴留,血容量增多

D.内分泌失调

E.遗传

题型:单项选择题

下列哪项不是促进健康的行为()。

A.积极锻炼

B.有病求医

C.多用抗生素

D.预防接种

E.戒烟限酒

题型:单项选择题

井架缓冲液缸的作用是什么?

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