某生物兴趣小组的三个同学对植物种子萌发所需的条件都很感兴趣,于是他们三人分工合作

题型:探究题

问题:

某生物兴趣小组的三个同学对植物种子萌发所需的条件都很感兴趣,于是他们三人分工合作,都以大豆为实验材料进行探究。现将他们的实验设计与数据结果整理于下表。请认真分析表格内容,回答问题:(表中未说明部分,均认为条件适宜)

学生装置标号温度(℃)湿度光照种子数发芽率(%)
A25潮湿有光10096
B8潮湿有光1000
C25干燥无光1000
D25潮湿无光10098
E25潮湿有光5100
F25潮湿无光5100
(1)甲同学设计的实验是为了探究____________对种子萌发的影响。

(2)乙同学实验设计的对照组是____________。

(3)丙同学设计的实验与甲乙两同学的相比,不足之处是____________________________________。

(4)从甲乙丙三位同学的实验结果可以得出的结论是__________________________________________。

(5)在适宜的条件下,A、D二组均有未萌发的种子,可能的原因是______________________________。

考点:种子萌发的条件和过程探究实验:种子萌发的环境条件探究实验:测定种子的发芽率
题型:探究题


Every Object Tells a Story凡事皆有戏
Everyone has a particular object to which they attach a special meaning or story. Every Object Tells A (1) is a participative website that enables people to explore the stories and meanings behind collections of museum objects. (2) to the site can create their own stories and share their own interpretations and objects online.
The project (3) on the art of storytelling and involves four regional museums, in partnership with Channel 4 and Ultralab, a (4) technology research centre at Anglia Polytechnic University. It will be led by the Victoria and Albert Museum. It (5) the personal meanings and histories behind objects to get people to look at them in new ways. It (6) designed to inspire them to create their own stories and share their interpretations and objects of personal significance (7) a growing online community.
Video, audio, text and pictures combine on the site to offer an enticing, accessible (8) into the content. Users can choose to browse the hundreds of objects featured, or they can search for (9) particular theme or person. They can decide on the level of information they want on an object, from (10) stories conveyed through text and pictures, to the richer experience offered by accompanying video and audio. They will (11) encouraged to add their own interpretation or object to the collection, by uploading text, images, video or audio (12) the site or by sending text and images from a mobile phone. In so doing, they will be (13) to the website’s content and illustrating how a single object can convey different meanings to different people.
The (14) stories and wonderful objects will appeal to a broad audience. The project has specific relevance to all key (15) of the National Curriculum in English and literacy. Outreach sessions in regional partner museums will encourage people to (16) involved in the project locally and a video booth will travel around England, visiting shopping centres, libraries, bus (17) and the like, to enable people to capture their object and story in a short video. This will (18) be uploaded onto the site.
In addition to the national and local publicity given to the project, Channel 4 (19) promote the website from a number of its programmes, ensuring a wide appeal and providing an added (20) for people to contribute their content.

题型:探究题

— Which tie do you prefer?

— _____. They are both of poor quality.[ ]

A. Nothing

B. None

C. Neither

D. No one

题型:探究题

在实验探究课上李阳用氯酸钾来制取氧气,他取用一定质量的氯酸钾和二氧化锰混合加热,生成氧气的质量与反应时间关系如图所示.

(1)完全反应后生成氧气的质量为______.

(2)计算所加氯酸钾的质量.

题型:探究题

工程造价信息和其他信息一样要保持新鲜度,这体现了工程造价信息的特点是( )。

A.专业性
B.多样性
C.动态性
D.季节性

题型:探究题

中国公民忻XX与中国公民曹XX1944年在中国结婚,婚后生育二女。曹XX1949年去台湾,1991年加入美国籍。双方分离后,常有通讯联系。忻XX1975年赴美与曹XX共同生活。1984年以后,曹XX每年回国一次,并购买、翻建了三套住宅。1989年,忻XX与XX曹在美国发生矛盾,曹XX独自来中国并与一妇女同居。忻XX知道这一情况后,要求曹XX与同居妇女断绝关系。曹不听,反到美国法院起诉离婚并获准。1991年3月,曹XX又来道中国,于8月17日与原同居妇女到宁波市民政局涉外婚姻登记处办理了婚姻登记。1991年12月14日,忻XX向宁波市中级人民法院提起诉讼,要求与曹XX离婚,分割夫妻关系存续期间的共同财产,要求判令曹XX支付生活费和抚养费。

本案应适用何国法律为准据法?为什么?

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