粮面压盖密封的方法有哪些?

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问题:

粮面压盖密封的方法有哪些?

考点:粮油保管员粮油保管员题库
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生态影响评价中,生物量减少的度量方法是对照( )进行量算。

A.近30年内本系统的平均值

B.历史上本系统的量值

C.经典文献提供的地球上本系统的平均值

D.同类系统的量值

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新生儿体液占体重的()

A.15%

B.20%

C.40%

D.60~75%

E.60%

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库内凝结水对物资储存有什么危害?

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“我家住在黄土高坡,大风从门前刮过”,一首红遍大江南北的歌曲把黄土高原形象地呈现在世人面前。读下图,回答问题。

(1)黄土高原是世界上最大的___________区,东起A___________,西至乌鞘岭,南连B___________,北抵长城。

(2)黄土高原主要跨四个省级行政区,其中省区①行政中心为___________。

(3)关于黄土高原黄土的来源,科学家曾提出过多种假说,其中“___________”得到了广泛的支持。列举上图能反映的一个依据:______________________。

(4)黄土高原水土流失严重的原因是:①自然原因有______________________(至少2点);②人为原因是______________________。

题型:问答题 简答题

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2项为多余选项。

     So, there you are, just sitting there in the subway car, enjoying that book you just bought. 1_____ Or,

the person sitting next to you takes out a nail clipper (指甲刀) and begins cutting his or her nails.

     Annoying? Many of us have to spend some time every day on public transportation (客运). 2_____ So,

to make the trip more pleasant, we suggest the following:

     Let passengers get off the bus or subway car before you get on. 3_____ Stand away from the doors

when they are closing.

     Don't talk loudly on a bus or subway. Chatting loudly with your friends can be annoying (讨厌的) to

others. 4_____.

     Don't think your bags and suitcases deserve (应得) a seat of their own.

     Use a tissue whenever you cough or sneeze (打喷嚏). An uncovered sneeze can spread germs, especially

in crowded places.

     Don't cut your nails or pick your nose on public transportation.

     Don't read over other people's shoulder. 5_____. It can make people uncomfortable. They might think

you're too stingy (小气的) even to buy a newspaper. Or they might think you're judging their behavior.

A. Suddenly, you feel someone leaning over your shoulder reading along with you.

B. Getting off and on in an orderly manner can save time for all.

C. Many people do this on subways, but it's really annoying.

D. We all know that some behaviors are simply unacceptable.

E. Don't shout into your mobile phone on a bus or subway.

F. Mind those manners on the subway.

G. Don't eat food on a bus or subway.

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