容积式灌装机运行时，若发现转动部件上有螺栓松动，采取的处理措施是（）A、停机处理 B、

爱美之心，人皆有之，更何况青春期的中学生呢？但许多学生追求怪异发型、奇装异服，有的男生甚至吸烟打牌。他们所表现出来的是[     ]

A．庸俗的生活情趣

B．较强烈的好奇心

C．高雅的生活情趣

D．值得赞赏的兴趣

It seems that every week someone becomes “the first” or “the youngest” or even “the first married couple” to do something that doesn’t seem to be very useful to the rest of us.

Why do they do it? Don’t they have better things to do with their time and money? And why should I be interested anyway? Human beings have already climbed the highest mountains, sailed across the oceans and flown around the world. Many of these things were done a long, long time ago. There just isn’t anything left to explore nowadays. I suppose there’s still a lot of the universe left, and the bottom of the ocean is still a bit of a mystery, but you need a lot of technology to explore areas like that. So, those people who feel the need for adventure can only do things that have been done before.

In May of this year a British man became the first person to walk alone from Canada to the North Pole. Personally, if I wanted to visit the Arctic, I’d rather go as a tourist on a cruise ship, with a helicopter trip to the North Pole included in the price. But OK, this man decided that he wanted to walk. The problem was that he went in the spring when the ice begins to melt and break up. So he got stuck on a longely piece of ice and a plane had to be sent in to rescue him.

These sorts of rescues are making many Australians angry with these record breakers. People trying to break sailing or rowing records get into trouble in the seas. So the Australian navy has to send ships to save them and this costs the government millions of dollars. I suppose we can’t just leave them to drown but we should give the bill to the people who are rescued.

小题1:According to the author, the so-called record breakers          .

A．do not benefit other people at all

B．inspire people to continue exploring

C．are boring and should be stopped

D．are usually not wealthy enough小题2:We can infer from the second paragraph that          .

A．there are no high mountains for people to climb

B．nothing is left for people to explore in the universe

C．it’s beyond ordinary people to explore the unknown

D．human beings could fly around the world long ago小题3:Many Australians are angry because the record breakers        .

A．often get into trouble

B．never use a cruise ship or a helicopter

C．never pay their own costs

D．satisfy their needs at the cost of others’ interest小题4:What is the writer’s attitude towards the record breakers?

A．Positive.

B．Negative.

C．Uninterested.

D．Neutral（中立的）.

使用军事禁区的摄影、摄像、录音、勘察、测量、描绘和记述资料，应当经（）级以上军事机关审查同意。

A、军分区

B、省军区

C、军区

全球定位系统（GPS）技术可用于定位、导航。若在甲、乙两地GPS接收机显示的经纬度坐标显示为甲（69°22′24″N，76°22′40″E），乙（80°25′01″N，77°06′58″E）。据此结合所学知识回答下列各题。

甲在乙地的（）

A.西北方

B.西南方

C.东北方

D.东南方

在农业生产中，单子叶作物的农田中常会生长一些双子叶杂草，它们会影响农作物的生长，使粮食减产。在实际生产中，农户常用一定浓度的生长素类似物除去与单子叶农作物混生的双子叶杂草。下图表示不同浓度的生长素类似物对单子叶植物和双子叶植物的影响，请据图分析回答：

对于同一种植物来说，根、芽、茎对生长素浓度的敏感性有差异，三者敏感程度依次增强是（）。