以下关于酸雨观测的说法,正确的是().A.为研究酸雨的时空分布提供宝贵的科学数据 B

题型:多项选择题

问题:

以下关于酸雨观测的说法,正确的是().

A.为研究酸雨的时空分布提供宝贵的科学数据

B.为酸雨预报提供宝贵的科学数据

C.为治理大气污染和防治酸雨提供重要科学依据

D.是服务于可持续发展战略和环境保护等国家决策的基础性工作

考点:地面气象测报上岗考试地面气象测报上岗考试题库
题型:多项选择题

当前影响黄金价格的因素包括()。

A.战争因素

B.供需情况

C.利率水平

D.通货膨胀

E.美元走势

题型:多项选择题

Many years ago,when I was fresh out of school and working in Denver,I was driving to my parents’ home in Missouri for Christmas. I stopped at a gas station(加油站) about 50 miles from Oklahoma City,where I was planning to stop and visit a friend. While I was standing in line at the cash register(收款台),I said hello to an older couple who were also paying for gas.

I took off,but had gone only a few miles when black smoke poured from the back of my car. I stopped and wondered what I should do. A car pulled up behind me. It was the couple I had spoken to at the gas station. They said they would take me to my friend’s. We chatted on the way into the city,and when I got out of the car,the husband gave me his business card.

I wrote him and his wife a thank­you note for helping me. Soon afterward,I received a Christmas present from them. Their note that came with it said that helping me had made their holidays meaningful.

Years later,I drove to a meeting in a nearby town in the morning. In late afternoon I returned to my car and found that I’d left the lights on all day,and the battery(电池) was dead. Then I noticed that the Friendly Ford dealership—a shop selling cars—was right next door. I walked over and found two salesmen in the showroom.

“Just how friendly is Friendly Ford?” I asked and explained my trouble. They quickly drove a pickup truck to my car and started it. They would accept no payment,so when I got home,I wrote them a note to say thanks. I received a letter back from one of the salesmen. No one had ever taken the time to write him and say thank you,and it meant a lot,he said.

“Thank you” — two powerful words. They’re easy to say and mean so much.

小题1:

The author planned to stop at Oklahoma City________.

A.to visit a friend

B.to see his parents

C.to pay at the cash register

D.to have more gas for his car小题2:

The words “took off” underlined in Paragraph 2 mean “________”.

A.turned off

B.moved off

C.put up

D.set up小题3:

What happened when the author found smoke coming out of his car?

A.He had it pulled back to the gas station.

B.The couple sent him a business card.

C.The couple offered to help him.

D.He called his friend for help.小题4:

The battery of the author’s car was dead because________.

A.something went wrong with the lights

B.the meeting lasted a whole day

C.he forgot to turn off the lights

D.he drove too long a distance小题5:

By telling his own experiences,the author tries to show ________.

A.how to write a thank­you letter

B.how to deal with car problems

C.the kind­heartedness of older people

D.the importance of expressing thanks

题型:多项选择题

一块足够长的白板,位于水平桌面上,处于静止状态.一石墨块(可视为质点)静止在白板上.石墨块与白板间有摩擦,滑动摩擦系数为μ.突然,使白板以恒定的速度v0做匀速直线运动,石墨块将在板上划下黑色痕迹.经过某段时间t,令白板突然停下,以后不再运动.在最后石墨块也不再运动时,白板上黑色痕迹的长度可能是(已知重力加速度为g,不计石墨与板摩擦划痕过程中损失的质量)(  )

A.

v20
2μg

B.

v20
μg

C.v0t-

1
2
μgt2

D.v0t

题型:多项选择题

国家公务员以交流形式调入的条件有()。

A.有重要领导人的推荐

B.有相应的职位空缺

C.必须经过严格考核具备拟任职务所要求的政治思想水平、工作能力以及相应的资格条件

D.考核合格的,应当到培训机构接受培训,然后正式任职

题型:多项选择题

男性,56岁,上腹部隐痛,进食疼痛加重25年,能干重活,此次进食后突然上腹剧痛,迅速波及全腹,2小时后来诊。查体:头出冷汗,面色苍白。P:96次/分,BP:130/95mmHg,R:28次/分,T:35.8℃。全腹有压痛和肌紧张,WBC9.5×109/L,中性核80%。最恰当的处理是().

A.腹穿置管引流术 

B.急作腹部B超检查 

C.急作胃肠钡透 

D.急诊剖腹探查作胃大部切除 

E.补液密切观察

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