作业帮corolla 其实我最想知道的是它是指哪个东西,在什么位置.
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corolla 其实我最想知道的是它是指哪个东西,在什么位置.
corolla
其实我最想知道的是它是指哪个东西,在什么位置.
corolla 其实我最想知道的是它是指哪个东西,在什么位置.
花冠口
花冠喉,花冠下部的一个结构
两者都是生物学结构拉,找本植物学看看
卡罗拉嘴
花冠嘴
花冠口,花冠是一种车,相信你知道把corolla throat,是卡罗拉
花冠 卡罗拉
花冠嘴 花冠咽喉
corolla意思是卵冠; 花冠。丰田有款车也叫这个http://corolla.toyota.com.cn/
不过我认为没关系，是花冠喉部的意思
最新消息corolla mouth应该是一种花名叫花冠唇花，大概外国叫corolla mouth
花冠嘴
我在这里查了一下http://www.cvh.org.cn
是花冠的一个结构吧！
corolla mouth是花冠口，
corolla throat是花冠喉部。
看在什么样的句子中，如下：
Anthers inserted near mouth of corolla tube or slightly protruding.
inserted to 2 mm from mouth of corolla tube or somewhat protruding.
Anthers yellow, inserted near or sligh...
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看在什么样的句子中，如下：
Anthers inserted near mouth of corolla tube or slightly protruding.
inserted to 2 mm from mouth of corolla tube or somewhat protruding.
Anthers yellow, inserted near or slightly below mouth of corolla tube.
Anthers yellow, inserted near mouth of corolla tube or slightly
protruding.
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corolla就是花冠的英文名字,mouth就是嘴的意思~
你可以猜下了~
我觉得把他们翻译成“花冠嘴”最合适。我的理解就是把嘴巴嘬成花冠的形状，不知道这样解释觉得怎么样！
哈哈~如果是看小说遇到的，我想就是这个意思了！！！
花冠口.
花冠嘴
Corolla is the overall structure of the petals of a flower taken as a group within the calyx. Normally the corolla is the most conspicuous part of a flower and of a bright colour other than green. The...
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Corolla is the overall structure of the petals of a flower taken as a group within the calyx. Normally the corolla is the most conspicuous part of a flower and of a bright colour other than green. The concept of corolla description is widely used in botany as a primary determinant of vascular plant identification. Alternatively the corolla may be considered as the inner whorl of the perianth structure. The role of the corolla in plant evolution has been studied extensively since Darwin postulated a theory of the origin of elongated corollae.[1]
澳大利亚的朋友跟我说这个:
i found this also.. "At the base of the banner, wings, and keel, the corolla is constricted into a narrow aperture, thus forming a constricted "mouth" at the top of a saccate tube "
from http://www.amjbot.org/cgi/content/full/89/1/37
that link looks like it has a lot of information
生物学:
--------------------------------------------------------------------------------
Reproductive Biology
Comparative analysis of late floral development and mating-system evolution in tribe Collinsieae (Scrophulariaceae s.l.)1
W. Scott Armbruster2,3,6, Christa P. H. Mulder3, Bruce G. Baldwin4, Susan Kalisz5, Bridget Wessa4 and Helen Nute3
2Department of Botany, Norwegian University of Science and Technology, N-7491 Trondheim, Norway; 3Institute of Arctic Biology, University of Alaska, Fairbanks, Alaska 99775-7000 USA; 4Jepson Herbarium and Department of Integrative Biology, University of California, Berkeley, California 94720-2465 USA; 5Department of Biological Science, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 USA
收起
花冠嘴
问你爸
花冠嘴
gun
花冠嘴
Anthers inserted near mouth of corolla tube or slightly protruding.
inserted to 2 mm from mouth of corolla tube or somewhat protruding.
Anthers yellow, inserted near or slightly below mouth of corolla tube.
Anthers yellow, inserted near mouth of corolla tube or slightly
protruding.
等着我回答奥，明天奥
①｛已知X^2+X-1=0，求X^3-2X+2006的值.｝
x^3-2x+2006
=x^3+x^2-x-x^2-x+1+2005
=x(x^2+x-1)-(x^2+x-1)+2005
=2005
②｛若X的平方-Y^2=24，X+Y=6，求X+2Y的值.｝
x^2-y^2=24
所以 (x+y)(x-y)=24
因...
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①｛已知X^2+X-1=0，求X^3-2X+2006的值.｝
x^3-2x+2006
=x^3+x^2-x-x^2-x+1+2005
=x(x^2+x-1)-(x^2+x-1)+2005
=2005
②｛若X的平方-Y^2=24，X+Y=6，求X+2Y的值.｝
x^2-y^2=24
所以 (x+y)(x-y)=24
因为 x+y=6
所以 x-y=4
所以 x=5, y=1
所以 x+2y=7
③｛计算(1-1/2^2)*(1-1/3^2)*(1-1/4^2)*...*(1-1/2006^2).｝
原式=[(2^2-1)/(2^2)][(3^2-1)/(3^2)][(4^2-1)/(4^2)]*...*[(2006^2-1)/(2006^2)]
=[(2+1)(2-1)/(2^2)][(3+1)(3-1)/(3^2)][(4+1)(4-1)/(4^2)]*...*[(2006+1)(2006-1)/(2006^2)]
=(1*2*3^2*4^2*5^2*...*2005^2*2006*2007)/(2^2*3^2*4^2*...*2006^2)
=1*2007/(2*2006)
=2007/4012
④｛已知X+Y+Z=5,XY+YZ+ZX=9,求X+2Y的值.｝
x+y+z=5
所以 x^2+y^2+z^2+2xy+2xz+2yz=25
所以 x^2+y^2+z^2=7
所以 2x^2+2y^2+2z^2=14
所以 2x^2+2y^2+2z^2-2xy-2yz-2xz=-4
所以 (x-y)^2+(y-z)^2+(x-z)^2=-4
^^^^^^怀疑题目有错^^^^^^
⑤｛已知a^2+b^2+c^2-ab-ac-bc=0,求证a=b=c.｝
2a^2+2b^2+2c^2-2ab-2ac-2bc=0
所以 (a-b)^2+(b-c)^2+(a-c)^2=0
所以 a-b=0, b-c=0, a-c=0
所以 a=b=c
⑥｛当a、b为何值时,多项式a^2+b^2-4a+6b+18有最小值,并求出最小值.｝
a^2+b^2-4a+6b+18
=a^2-4a+4+b^2+6b+9+5
=(a-2)^2+(b+3)^2+5
所以当 a=2, b=-3 时，原式有最小值5
⑦｛已知a^2+b^2+2c^2+2ac-2bc=0,求a+b的值.｝
a^2+2ac+c^2+b^2-2bc+c^2=0
(a+c)^2+(b-c)^2=0
a+c=b-c=0
a=-c, b=c
a+b=0
⑧｛已知3^x=5/2,3^y=1/25,求3^2x+y的值｝
3^(2x+y)=(3^x)*(3^x)*(3^y)=(5/2)*(5/2)*(1/25)=1/4
①｛已知X^2+X-1=0，求X^3-2X+2006的值.｝
x^3-2x+2006
=x^3+x^2-x-x^2-x+1+2005
=x(x^2+x-1)-(x^2+x-1)+2005
=2005
②｛若X的平方-Y^2=24，X+Y=6，求X+2Y的值.｝
x^2-y^2=24
所以 (x+y)(x-y)=24
因为 x+y=6
所以 x-y=4
所以 x=5, y=1
所以 x+2y=7
③｛计算(1-1/2^2)*(1-1/3^2)*(1-1/4^2)*...*(1-1/2006^2).｝
原式=[(2^2-1)/(2^2)][(3^2-1)/(3^2)][(4^2-1)/(4^2)]*...*[(2006^2-1)/(2006^2)]
=[(2+1)(2-1)/(2^2)][(3+1)(3-1)/(3^2)][(4+1)(4-1)/(4^2)]*...*[(2006+1)(2006-1)/(2006^2)]
=(1*2*3^2*4^2*5^2*...*2005^2*2006*2007)/(2^2*3^2*4^2*...*2006^2)
=1*2007/(2*2006)
=2007/4012
④｛已知X+Y+Z=5,XY+YZ+ZX=9,求X+2Y的值.｝
x+y+z=5
所以 x^2+y^2+z^2+2xy+2xz+2yz=25
所以 x^2+y^2+z^2=7
所以 2x^2+2y^2+2z^2=14
所以 2x^2+2y^2+2z^2-2xy-2yz-2xz=-4
所以 (x-y)^2+(y-z)^2+(x-z)^2=-4
^^^^^^怀疑题目有错^^^^^^
⑤｛已知a^2+b^2+c^2-ab-ac-bc=0,求证a=b=c.｝
2a^2+2b^2+2c^2-2ab-2ac-2bc=0
所以 (a-b)^2+(b-c)^2+(a-c)^2=0
所以 a-b=0, b-c=0, a-c=0
所以 a=b=c
⑥｛当a、b为何值时,多项式a^2+b^2-4a+6b+18有最小值,并求出最小值.｝
a^2+b^2-4a+6b+18
=a^2-4a+4+b^2+6b+9+5
=(a-2)^2+(b+3)^2+5
所以当 a=2, b=-3 时，原式有最小值5
⑦｛已知a^2+b^2+2c^2+2ac-2bc=0,求a+b的值.｝
a^2+2ac+c^2+b^2-2bc+c^2=0
(a+c)^2+(b-c)^2=0
a+c=b-c=0
a=-c, b=c
a+b=0
⑧｛已知3^x=5/2,3^y=1/25,求3^2x+y的值｝
3^(2x+y)=(3^x)*(3^x)*(3^y)=(5/2)*(5/2)*(1/25)=1/4
①｛已知X^2+X-1=0，求X^3-2X+2006的值.｝
x^3-2x+2006
=x^3+x^2-x-x^2-x+1+2005
=x(x^2+x-1)-(x^2+x-1)+2005
=2005
②｛若X的平方-Y^2=24，X+Y=6，求X+2Y的值.｝
x^2-y^2=24
所以 (x+y)(x-y)=24
因为 x+y=6
所以 x-y=4
所以 x=5, y=1
所以 x+2y=7
③｛计算(1-1/2^2)*(1-1/3^2)*(1-1/4^2)*...*(1-1/2006^2).｝
原式=[(2^2-1)/(2^2)][(3^2-1)/(3^2)][(4^2-1)/(4^2)]*...*[(2006^2-1)/(2006^2)]
=[(2+1)(2-1)/(2^2)][(3+1)(3-1)/(3^2)][(4+1)(4-1)/(4^2)]*...*[(2006+1)(2006-1)/(2006^2)]
=(1*2*3^2*4^2*5^2*...*2005^2*2006*2007)/(2^2*3^2*4^2*...*2006^2)
=1*2007/(2*2006)
=2007/4012
④｛已知X+Y+Z=5,XY+YZ+ZX=9,求X+2Y的值.｝
x+y+z=5
所以 x^2+y^2+z^2+2xy+2xz+2yz=25
所以 x^2+y^2+z^2=7
所以 2x^2+2y^2+2z^2=14
所以 2x^2+2y^2+2z^2-2xy-2yz-2xz=-4
所以 (x-y)^2+(y-z)^2+(x-z)^2=-4
^^^^^^怀疑题目有错^^^^^^
⑤｛已知a^2+b^2+c^2-ab-ac-bc=0,求证a=b=c.｝
2a^2+2b^2+2c^2-2ab-2ac-2bc=0
所以 (a-b)^2+(b-c)^2+(a-c)^2=0
所以 a-b=0, b-c=0, a-c=0
所以 a=b=c
⑥｛当a、b为何值时,多项式a^2+b^2-4a+6b+18有最小值,并求出最小值.｝
a^2+b^2-4a+6b+18
=a^2-4a+4+b^2+6b+9+5
=(a-2)^2+(b+3)^2+5
所以当 a=2, b=-3 时，原式有最小值5
⑦｛已知a^2+b^2+2c^2+2ac-2bc=0,求a+b的值.｝
a^2+2ac+c^2+b^2-2bc+c^2=0
(a+c)^2+(b-c)^2=0
a+c=b-c=0
a=-c, b=c
a+b=0
⑧｛已知3^x=5/2,3^y=1/25,求3^2x+y的值｝
3^(2x+y)=(3^x)*(3^x)*(3^y)=(5/2)*(5/2)*(1/25)=1/4
收起
花冠口
花冠嘴
应该是花冠嘴..
花冠喉