樱桃 英语介绍 樱桃盛产哪里 等等 大一英语口语课 急用 明天上课 帮个忙 全部英文
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樱桃 英语介绍 樱桃盛产哪里 等等 大一英语口语课 急用 明天上课 帮个忙 全部英文
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Cherry belongs to rose division deciduous fruit trees,cherry red color when mature,exquisitely carved,delicious shaped tender,nutrition is rich,high value health care,"and" with peach" nickname.Alias:cherry,Entebbe,Yingtao wedge,Jing Tao,peach,English peach,cherry Niu Tao,with peach,pearl,agate.Deciduous trees.Plant height up to 8 meters.Twigs glabrous or slightly hairy.Leaves ovate to ovate-elliptic,7 to 16 cm long,4 to 8 cm wide,apex acuminate,base rounded,margin with size ranging from doubly serrate,teeth glandular,glabrous above or below a small hairy,sparsely puberulent; petiole is long 0.8 1.5 cm,pubescent,near the top there are 2 glands.Take 3 6 flowers in racemes,flower diameter 1.5 2.5 cm,first Xie Kaifang; pedicels ca.1.5 cm,pubescent.Calyx tube cylindric,pubescent; sepals ovate or oblong-triangular,flower later reflexed.Petals white.Stamens numerous; ovary glabrous.Drupe,subglobose,without furrows,red,ca.1 cm in diam.3 April May,fr..Cherry Wen Xiguang,born in the hillside Yang or ditches,appropriate at an altitude of 300 to 600 meters,3339 degrees north latitude cultivation.Be afraid of waterlogged be afraid of drought,big cherry bogey bogey cold wind,suitable for the annual average temperature of 10-13 degrees Celsius,early spring temperature change is not fierce,summer is cool and dry,rainfall moderate,adequate illumination area.Warm Temperate East Asia monsoon mainland semi humid climate,moderate temperature,rainfall,long frost-free period,with period early,the annual average temperature of 12 degrees Celsius,rainfall of 700 mm,frost-free period 250 days,suitable for big cherry cultivation.I hope I can help you.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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