下图是肾单位及其周围的毛细血管示意图,请据图回答:

(1)肾单位是由肾小球、________和________构成。
(2)图中A、B两处所表示的生理过程,A是________,B是________。
(3)①②中流的血液分别是动脉血和________血。从⑥中流出的液体是________。
(4)下表是血浆、原尿和尿液的成分比较表:
| 比较 | 血细胞 | 蛋白质 | 葡葡糖 |
| 样品A | × | × | √ |
| 样品B | × | × | × |
| 样品C | × | √ | √ |
请你分析样品,A、B、C中代表血浆、原尿、尿液的样品分别是________、________、________。
下列物质中既能跟稀H2SO4反应,又能跟氢氧化钠溶液反应的是( )
①NaHCO3②Al2O3③Al(OH)3④Al.
A.③④ B.②③④ C.①③④ D.全部
“双百人物”(100位为新中国成立作出突出贡献的英雄模范人物和100位新中国成立以来感动中国人物)用自己的言行,传承着中华民族的优秀品质,让我们在感动中实现精神的升华。他们的身上折射出,在当代中国:
A.民族精神生生不息,历久弥新 B.核心价值博大精深,人人践行
C.中华美德治国化民,指引方向 D.传统文化源远流长,凝聚力量
对不少普通老百姓来说,“中国梦”就是“安居梦”,就是杜甫曾经喊出过的“ , ”的梦想。(填杜甫《茅屋为秋风所破歌》中的句子。)
26.据记载,在义和团运动时期,一个知识分子在路上遇到义和团,因身边带有铅笔一支,洋纸一张,便被义和团乱刀拿下。还有一家因有一根火柴,结果一家八口全部被义和团战士杀害。”这反映了义和团 ( )
A.滥杀无辜百姓 B.反对一切文化
C.极端排外情结 D.维护传统社会
李 孝 子 传 袁 枚
嘉定之曲江里有孝子李维煌,字裕光。父岩士,生孝子十年殁,家无旨畜①,母针衽以供孝子出就外塾。泣曰:“养亲,儿取也。儿不养母,乃藉母养儿,儿心何安!”遂弃书史,勤耕作,市珍怪之食,进之母,而已甘食淡焉。母病喉,勺饮,喀喀②不下者三昼夜矣。孝子呼天求救,母梦神人刺以针曰:“哀而子之孝也。”觉,一汗而愈。雍正七年秋,海风起,城中生波涛,孝子居故穿漏,夜半屋摇摇然,孝子趋负母,伏几下。俄而前后庐舍崩,所避处独完。
孝子父亡逾年,大父③亦亡。及其莽也,时届严寒,体故赢,手炭土,僵大雪中。治冢匠数人,蕴火覆之,沦以汤,乃苏,年五十五卒。卒时抱母大恸,嘱其孤某善事大母
。
相传其幼时,居父丧,寝苫块中,哀号三年,每出入,邻人指曰:小孝子,小孝子。盖其天性然也。乾隆三十年,大吏闻于朝建坊曲江里立祠其旁。
论曰: 《孝经》一书,圣人所以为人子训者至矣。然世人方读书以求孝,而李孝氏子独因孝以废书,何耶?中庸曰:“率性④之谓道,修道之谓教。”古之人能率其性者,无俟于教也。不然,慈乌反哺,羔羊跪乳,使彼所读何书哉?
(选自《小仓山房文集•卷二十七》,有删节)
[注]①旨畜:贮藏的美好食品。②喀(kā)喀:呕吐声。③大父:祖父。④率性:遵循本性。
1.解释下面句子加点词语的意思。
①母病喉,勺饮( )②嘱其孤某善事大母( )③盖其天性然也( )
2.下列句子中,加点词语的意义和用法相同的一组是( )
A.嘉定之曲江里有孝子李维煌。 孤之有孔明,犹鱼之有水也。 (陈寿《三国志•诸葛亮传》 )
B.市珍怪之食,进之母,而已甘食淡焉。
野芳发而幽香,佳木秀而繁阴。 (欧阳修《醉翁亭记》 )
C.蕴火覆之,沦以汤,乃苏。
政通人和,百废俱兴,乃重修岳阳楼。 (范仲淹《岳阳楼记》 )
D.而李孝氏子独因孝以废书。
以天下之所顺,攻亲戚之所畔。 ( 《孟子•公孙丑下》 )
3.把文中画横线的句子翻译成现代汉
语。
①养亲,儿取也。儿不养母,乃藉母养儿,儿心何安!
译文:
②古之人能率其性者,无俟于教也。
译文:
4.文中画波浪线的句子没有断句,请根据你的理解用“/”断开。
大 吏 闻 于 朝 建 坊 曲 江 里 立 祠 其 旁。
读图3太阳光照图,四图中扬州市白昼由长到短的排序是
A.②①③④ B.②④③① C.①④③② D.①③④②
如图是利用现代生物工程技术治疗遗传性糖尿病(基因缺陷导致胰岛B细胞不能正常合成胰岛素)的过程设计图解,请据图回答:(其中②是胚胎干细胞)

(1)图中①是 ,④过程常用的方法是 .
(2)利用 技术快速扩增健康胰岛B细胞基因的过程中,目的基因受热形成单链并与引物结合,在酶的作用下延伸形成DNA,该酶的特点是 .该技术的原理是 .
(3)过程④通常用②做受体细胞的原因是 .
(4)图示治病的方法叫做 ,与一般的异体移植相比最大的优点是 .
——You ______ it up during the meeting
——I_______ know it was so sensitive an issue.
A.might not have brought; don’t B.needn’t have brought; don’t
C.shouldn’t have taken, didn’t D.shouldn’t have brought, didn’t

为了探究某种复方草药对某种细菌性乳腺炎的疗效是否与机体免疫功能增强有关,某研究小组将细 菌性乳腺炎模型小鼠随机分为实验组(草药灌胃)、空白对照组(蒸馏水灌胃)和阳性对照组(免疫增强剂A灌胃),并检测免疫指标.
回答下列问题:
(1)研究发现:实验组小鼠吞噬细胞的吞噬能力显著高于阳性对照组,极显著高于空白对照组,这一结果至少可说明该草药增强了小鼠的 免疫功能,其特点是 .
(2)研究还发现:实验组小鼠的T细胞含量显著高于空白对照组,与阳性对照组相近.这一结果说明:该草药可能通过提高小鼠的T细胞含量来增强其特异性免疫功能.通常,在细胞免疫过程中,效应T细胞的作用是 .
(3)在特异性免疫中,T细胞可产生 因子,受到抗原刺激的 细胞可在该因子的作用下,增殖分化为浆细胞,浆细胞产生 ,参与体液免疫过程.
2013年12月2日,“嫦娥三号”探月卫星沿地月转移轨道直奔月球,在距月球表面100 km的P点进行第一次变轨后被月球捕获,先进入距月球表面100 km圆轨道绕月飞行,如图所示。之后“嫦娥三号”叉经过一次变轨,进入近月表面15km、远月表面100km的椭圆轨道 飞行,下列说法正确的是
A.“嫦娥三号”在距月球表面100 km圆轨道上运行的速度大于月球的第一宇宙速度
B.“嫦娥三号’’在距月球表面100 km圆轨道上运行周期比在椭圆轨道上的周期小
C.“嫦娥三号’’在圆轨道上经过P点时开动发动机加速才能进人椭圆轨道
D.“嫦娥三号’’在圆轨道上经过P点时刹车减速才能进入椭圆轨道

Here are five cooking habits that could be costing you important nutrients, causing you to overeat——or even making you sick.
Boiling vegetables
A 2015 review showed that boiling vegetables resulted in a high loss of vitamin C . 1 . "If you're not drinking a soup, you're missing out on nutrients," says Nishta Saxena, a dietitian based in Toronto .
Washing chicken
While your favourite old cookbooks likely tell you to wash a chicken before cooking, this outdated advice is a safety risk. Cleaning meat in water may remove some of the bacteria, but it's also likely to pass it around your kitchen. 2 . And clean your hands after you've finished the cooking.
Removing skins from fruits and vegetables
"Large amounts of nutrients are found in the skins." says Liz Powell, who is a dietitian from Vancouver. " Concern about chemical remains isn't a good enough reason to do the removing. 3 . "
Mixing everything
A smoothie (a mixed drink) is a smart way to eat some greens. 4 . They're often short of protein and healthy fat. These things work together to keep us feeling full and satisfied. Without them, it's not really a balanced meal, Powell suggests adding some foods which contain protein or having a piece of wholewheat( 全麦的 )bread on the side.
Overdressing salads
We think we can add anything to salads, and they'll still be a nutritious choice. But it's just not true. If you're topping your bowl with dried strawberries and sweet cheese, you've easily added 30 grams of sugar to your so-called healthy lunch. 5 .
A . You should choose healthy produce for your family.
B . But these kinds of drinks are likely to be unbalanced.
C . To stay safe, don't wash the meat when preparing it.
D . Cabbage. for example, loses about 33 % of its vitamin C .
E.Nuts are better choices to improve the taste of your greens.
F.The skins of potatoes contain more nutrients than its inside part.
G.Washing your produce will remove some chemicals from the surface.
方程![]()
无实数根,则k的取值范围为 .
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。选项中有两项是多余选项。
There are some injuries that are common to all types of extreme sports. The following are some of the important things to do to prevent extreme sports injuries 71 But , they can definitely minimize the risk of injuries .
Warm up.
72 They include a combination of cardiovascular ( 心脑血管的 ) exercises , strength drills and stretching . Cardiovascular exercises increase body temperature, heart rate and blood circulation, which is required for further movement of the body, Strength drills increase the stamina(耐力)of the body, while stretching warms up the muscles preparing them for sudden forceful movements. 73 It also plays an important role in boosting the team spirit for a team sport. A warm-up session should last for at least 20 minutes and it can extend up to half an hour.
Avoid overworking.
There are some people who do not exercise their body for the sport on a regular basis and perform a week’s task in a day or two. 74 They do not realize the effect of overworking during the performance and keep doing it until they feel extremely tired. Apart from the actual sport, one should also avoid overdoing the warm-up exercises before the activity.
75
Just as warming up is essential before any rigorous physical activity, cooling down the body after playing a rigorous sport is also a significant part of physical conditioning. When you are done with your sports session, you can conclude with some walking, jogging or light running. Slight stretching exercises, focusing on specific muscles, will also be useful for cooling down the body.
ACool yourself down.
BLook for a coach to train you.
CThese people are likely to suffer from extreme sport injuries.
DHowever, there are no perfect methods which can assure you 100% safety.
EAlong with physical preparation, warming up prepares you mentally to begin a sport.
FYou should also be careful about your clothing selection for warmth and protection.
GWarm-up exercises are very important before you before you begin any sports practice.
2012年10月11日,诺贝尔文学奖揭晓,中国作家莫言获奖。诺贝尔委员会给其的颁奖词为:莫言“将魔幻现实主义与民间故事、历史与当代社会融合在一起”。莫言自己则说:“土是我走向世界的重要原因”。他在中国传统文学和口头文学中寻找到一个出发点。他将青春的经验和在家乡的经历放臵在了作品中。
莫言的成功首先是他的作品既有对现实的批判,又极具浪漫主义风格,能把中国几千年的历史沉淀传播给整个世界,适合中国读者的口味,适合评委的味口,也适合全世界读者的口味。其次是随着中文在世界上的普及,越来越多的老外开始对中国文化有了初步的认识。最后也不能排除电影《红高梁》在世界上的影响。可以毫不夸张地说,如果没有《红高梁》电影在世界上的成功,也就没有莫言的今天。
结合材料,从文化生活的角度分析莫言获得诺贝尔奖的原因。
实验室做钠和水反应的实验时,下列关于实验现象的描述错误的是
A.钠浮在水面上四处游动 B.钠溶成小球,并且伴有“嘶嘶”声音
C.向反应后的溶液中加入酚酞,溶液颜色变红 D.反应中有大量白色沉淀生成
下列关于金属性质的叙述中正确的是( )
A.钠与氧气反应时,产物是由O2的用量决定的
B.铝箔在空气中受热可以熔化且会发生剧烈燃烧
C.金属与非金属发生反应时,被氧化的一定是金属
D.铁丝不论在空气中还是纯氧中都不会燃烧
配制一定物质的量浓度的
溶液时,会造成所配
溶液浓度偏高的是( )
A.所用
已经潮解
B.向容量瓶中加水,未到刻度线
C.没有洗涤烧杯和玻璃棒2~3次
D.称量
固体时,
固体和砝码放错托盘
假如穿越时光隧道回到唐朝,你不能经历的事情是( )
A.到赵州桥上散步 B.阅读《金刚经》
C.在纸上写字 D.乘坐装有指南针的海船从事海外贸易