请结合番茄栽培的生产实际,解答下列有关问题: (1)如果缺苗,需要进行幼苗移栽.

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问题:

请结合番茄栽培的生产实际,解答下列有关问题:

(1)如果缺苗,需要进行幼苗移栽.在移栽番茄幼苗时:根部通常要带一个土团,是为了防止______;多在傍晚或阴天进行,且移栽后要遮阳,其目的是______.

(2)在水涝地里发现番茄幼苗出现了烂根现象,若要探究“番茄幼苗烂根的原因”,请完成下列实验方案

I作出假设:番茄烂根是由于根部缺氧所致

II制定和实施探究方案:

①取两个培养缸并编号A、B,分别加入等量的完全培养液,放入______且生长健壮的幼苗.

②______.

③一段时间后,观察和记录A、B装置中的实验现象.

III实验结果预测及相应结论:

①______.

②______.

③______.

考点:蒸腾作用呼吸作用
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氟尿嘧啶的发现所依据的原理是().

A.氟他胺 

B.非那雄胺 

C.左炔诺孕酮 

D.丙酸睾酮 

E.达那唑

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公元1004年北宋与辽议和,兄弟之国,宋每年给辽银十万绢20万匹。史称().

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螺旋式熔断器的电源线应接在熔断器的下接线座.

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宋代对后世影响较大、比较全面的妇产科专著是()

A.《产育宝庆集》

B.《十产论》

C.《坤元是保》

D.《女科百问》

E.《妇人大全良方》

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What’s in a surname You may ask. A new website project has been released, that helps you (1) . Have you ever wondered why your ancestors gathered where they did, or where others with your surname live now A research project (2) in Britain answers these questions. And another study has found the surnames are (3) .
"Smith", for example, remains the most common surname in Britain. Used by (4) people, it has exactly the same concentration it always did in Lerwick, in the Scottish Shetland Islands. "Jones" is (5) , and is the most common among hill farmers (6) .
The data used for this project comes partly (7) . A number of other files are held by Expairing, which is probably Britain’s (8) .
There’ re some of us who are fairly predictable. "Campbell", for example, as you might expect, is somewhat concentrated (9) , and it appears really bizarre to be found anywhere else.
Well, with 25,000 names as (10) , what you can do is put them in general categories, if, for example, you look at (11) . Like the name Webber, you might find it is much more common in the Midlands than (12) . If you go to Wales, most people get their names (13) . And in Yorkshire for example, a lot of people have names (14) that they originally lived in or at least their ancestors did.
Well, we only have 25, 000 names on this website, but there’re (15) now found in Britain and they’ re particularly interesting, for (16) . Most British names are fairly common. And about what we can now do as such is look for (17) from different parts of the world and different faiths, (18) . And what there is in names is actually extremely useful, for researchers in (19) may find a lot about (20) now living in this country.

What’s in a surname You may ask. A new website project has been released, that helps you (1) . Have you ever wondered why your ancestors gathered where they did, or where others with your surname live now A research project (2) in Britain answers these questions. And another study has found the surnames are (3) .
"Smith", for example, remains the most common surname in Britain. Used by (4) people, it has exactly the same concentration it always did in Lerwick, in the Scottish Shetland Islands. "Jones" is (5) , and is the most common among hill farmers (6) .
The data used for this project comes partly (7) . A number of other files are held by Expairing, which is probably Britain’s (8) .
There’ re some of us who are fairly predictable. "Campbell", for example, as you might expect, is somewhat concentrated (9) , and it appears really bizarre to be found anywhere else.
Well, with 25,000 names as (10) , what you can do is put them in general categories, if, for example, you look at (11) . Like the name Webber, you might find it is much more common in the Midlands than (12) . If you go to Wales, most people get their names (13) . And in Yorkshire for example, a lot of people have names (14) that they originally lived in or at least their ancestors did.
Well, we only have 25, 000 names on this website, but there’re (15) now found in Britain and they’ re particularly interesting, for (16) . Most British names are fairly common. And about what we can now do as such is look for (17) from different parts of the world and different faiths, (18) . And what there is in names is actually extremely useful, for researchers in (19) may find a lot about (20) now living in this country.

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