问题 单项选择题

在膨胀设备的控制系统中,下列哪一个设备是独立操作的。()

A.浸渍器和松散器

B.松散器和振动柜

C.振动柜和干冰皮带秤

D.干冰皮带秤和切向分离器

答案

参考答案:C

阅读理解

Something was crying outside. So I went out to see what was happening. A big cat sat by the door. It must run for a long time as it looked tired and dirty. I let it in my house and took out some food; this poor cat ate all, but still looked starving…, so I got my own cats’ fish, and the cat ate that too!

My five-year-old son and eight-year-old daughter were interested in the cat. They bathed (给……洗澡) it and fed it more food. They wanted to keep it. But I didn’t agree. It was not because I didn’t love it. We already had 2 cats and 2 dogs and our house was not big enough to keep more. Another reason was that I thought maybe it got lost. And its owner (主人) must be worried about it. Then I posted notices all over the town in the hope of finding its home. I also bought an ad (广告)time on a radio station. Three weeks passed, but there was no response (答复).

Finally, I decided to keep the cat. Our house was small, but I would take good care of it as possible as I could.  

小题1:What did the cat look like when it came to the writer’s home?

A.Tired but beautiful.

B.Cute and clean.

C.Dirty but lovely.

D.Tired and dirty.小题2:Why didn’t the writer agree to keep the cat?

A. The children liked to hit the cat.

B.The cat was too small.

C.He wanted to help the cat find its owner.

D.He didn’t like it.小题3:What does the underlined word“starving”mean in Chinese?

A.饥饿的

B.忧郁的

C.恐惧的

D.沮丧的小题4:Which of the following is NOT true according to the passage?

A.At last, the writer had three cats and two dogs.

B.The writer’s house was too small to keep the cat.

C.The writer’s daughter is three years younger than his son.

D.The writer tried hard to find the cat’s home.小题5:What is the passage mainly about?

A.Why the writer didn’t want to keep cats any more.

B.How the writer found a cat and raised 饲养 it.

C.How the writer’s family looked after a cat.

D.What the writer did to find the cat’s owner.

单项选择题

阅读下面材料,完成1—8题。

材料一

自助科技创新催生“蛟龙”入水

二十一世纪以来,世界各国都在大力开展探索海洋、开发海洋资源的活动。深海潜水家是进入深海不可或缺的重要运载作业装备。在无人潜水器迅猛发展的今日,载人潜水器的发展仍然受到发达国家的高度重视,被称为“海洋学研究领域的重要基石”。

第一艘真正意义上的载人深海潜水器是美国的“曲司特I”号。由于该潜水器无航行和作业能力,使用性能受到限制,加上体积较大,建造与运输均不方便,此类深浅器未得到进一步发展。真正开创了人类检测海洋资源历史的是美国1964年研制的“阿尔文”号,法国、俄罗斯、日本的大深度载人潜水器则是80年代的产品。

“蛟龙”号使我国成为继美国、法国、俄罗斯、日本之后世界上第五个掌握大深度载人深潜技术的国家。2009年,我国研发的“蛟龙”二号载人潜水器在南中国海首次开展了1000米级深潜实验。2010年已能下潜到3750年的海底,并完成海底取样、海底微地形地貌探测等任务。2011年7-8月,“蛟龙”号载人潜水器又在东北太平洋进行了5000米级实验,取得了一系列技术和应用成果。仅仅过了一年,2012年6月27日,“蛟龙”号在马里亚纳海沟开展了7000米级载人深潜实验,下潜到7062米深度,创造了国际上同类作业型载人潜水器下潜深度的最高纪录。此次海试进行了海水矿物取样、标志物发放、高清摄录、高精度海底地形测量等深海调查作业,并首次获取了这一海域7000米深度的动物影像和样本。2013年,“蛟龙”号转入实验性应用,并首次搭载科学家下潜,缺德了大量宝贵样品,标志着我国已经具备了进行深海实地科学考察和研究的能力。2014-2015年,“蛟龙”号在印度洋下潜。2016年5月,“蛟龙”号在西北太平洋雅浦海沟进行科学应用下潜,并开展了超过1公里远的近底航行。

“蛟龙”号载人潜水器的研制充分体现了美国自主科技创新的追求。它与美国最新的6500米级“新阿尔文”号载人潜水器在水下的工作时间极限相同,能够携带的科学有效负载也相同,操纵性能和悬停作业能力相近,但在下潜深度方面它要审500米。“蛟龙”号的自动驾驶水平、水声通信功能也要略胜一筹,特别是水声通信传输图像的能力和微地形地貌的探测能力更是“新阿尔文”号所不具备的。

(取材于崔维成、王海磐、刘涛等的相关文章)

根据“材料一”,下列对“蛟龙”号价值的理解,不正确的一项是()

A.使我国跻身世界掌握大深度载人深潜技术的少数国家之列

B.使我国首次获取了7000米深海的动物影像和样本

C.使我国具备了进行深海实地科学考察和研究的能力

D.使我国深海潜水器研发能力和水平全面领先其他发达国家