Herbaceous annual (Solanum tuberosum) in the nightshade family.One of the world's main food crops,the potato differs from other food crops in that the edible portion is a tuber.Highly digestible,potatoes are prepared for eating in many ways and are a major source of starch as well as amino acids,protein,vitamin C,and B vitamins.The stem grows 20 – 40 in.(50 – 100 cm) tall,sprouting spirally arranged compound leaves.Underground,stems extend as stolons,the ends of which enlarge into 1 – 20 tubers of variable shape and size.The tubers have spirally arranged buds (eyes) that may remain dormant after the tuber is fully grown for up to 10 weeks or more; they grow into plants identical to the parent plant.A native of the Andes,the potato (also known as the common potato,white potato,or Irish potato) was carried by Spaniards into Europe during the 16th century.A century later,it had become the major food crop in Ireland; disastrous damage to the crop by a fungal blight caused the Irish potato famine in the mid-1800s.
最新问答： 小亮语文、数学两门平均分为91分，英语得了85分，他三门平均成绩是（ ） Can we play table tennis _____ 6 p.m.on Saturdays? Nonsense,of course.Very seriously. 亲人久别重逢后离别的句子 同学们参加野营活动，一个同学到负责后勤的老师那里去领碗，老师问他领多少？他说领55个．又问：“多少人吃饭？”他说：“一人 f`(x)=0处为什么不一定是极值? co-operation是什么意思? 两个直角三角形一定可以拼成一个长方形对吗 我会照相了 作文 ①系动词和普通的动词有什么区别,系动词后面加什么（举例说明）②除了动词修饰副词,还有什么修饰什么 证明:当0 在坐标系中,已知两定点和两动点,求全等三角形的对数 解一元一次方程和一元二次方程要不要检验 把一把长为13厘米的直尺,在上面刻几条刻度线,使得这把尺子能一次量出1-13厘米的所有整厘米的长度.问:至少要刻几条线? Would you mind closing the window?It is windy outside.Not at （2012•崇安区二模）如图，在直角坐标系中，C点坐标为（0，3），A点在x轴上，[OC/OA]=[3/4]，二次函数y （1996•鄂州）从1升10%的氢氧化钠溶液中取出10毫升，此10毫升溶液的百分比浓度是（ ） 人体神经细胞有多少条染色体?我是初一的,说的不要太深奥啊! 弹簧秤上挂一个物体m=2kg,在下列情况下,弹簧秤的读数是多少?（g=10m/s^2） 一道物理概念题阅读课本回答,影响半导体导电性能的因素：————,—————,和掺杂物,利用半导体材料可以制成————,—
