首页
登录
职称英语
We often think of agriculture as planting seeds and harvesting crops. But ma
We often think of agriculture as planting seeds and harvesting crops. But ma
游客
2023-08-05
62
管理
问题
We often think of agriculture as planting seeds and harvesting crops. But many crops do not come from seeds. Many kinds of trees and plants are grown from【C1】________ cut from existing trees and plants. This is called grafting (嫁接).
Farmers cut branches or young growths, called【C2】________, from one plant and place them on a related kind of plant. The branch or bud that is grafted is called a scion (接穗). The plant that【C3】________ the graft is called the root stock. Over time, the【C4】________ from the two plants grow together. The grafted plant begins to【C5】________ the leaves and fruit of the scion, not the root stock.
A graft can be cut in several ways. A cleft graft (割接,劈接), for example, requires a scion with several buds on it. The bottom of the scion is cut in the【C6】________ of the letter V. A place is cut in the root stock to accept the scion. The scion is then【C7】________ placed into the cut on the root stock. Growth medium is put on the【C8】________to keep it wet and help the growth.
Grafting can join scions with【C9】________ qualities to root stock that is strong and resists disease and insects. Some common fruit trees such as sweet cherries have to be grafted.
In an age of high-tech agriculture, grafting is a low-tech method that remains 【C10】________ important.
A) accepts F) desirable K) pieces
B) agreeable G) extremely L) produce
C) blossoms H) grow M) relatively
D) buds I) joint N) securely
E) composes J) parts O) shape [br] 【C9】
选项
答案
F
解析
形容词辨析题。空格后是名词qualities,所以此处应填形容词。由空格后的that is strong and resists disease and insects可知,此处讲的是“嫁接可将拥有所需特性的接穗与强壮且抗病、抗虫性强的砧木相结合”,故F)desirable为本题答案。
转载请注明原文地址:http://tihaiku.com/zcyy/2899242.html
相关试题推荐
A、Collectingmorewoodfromforests.B、Growingmoreorganiccrops.C、Makinggood
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
TheUnitedNationsFoodandAgricultureOrganizationhaswarnedthatMadCow
Whyisthecloseplantingoftreesofthesamespeciesavoidedinmodernorchard
Whyisthecloseplantingoftreesofthesamespeciesavoidedinmodernorchard
Whyisthecloseplantingoftreesofthesamespeciesavoidedinmodernorchard
随机试题
下列哪种疾病不是由于营养过剩引起的( )。A.佝偻病 B.肥胖 C.糖尿病
人车混合通行的隧道中,中间段亮度不得低于2.0cd/m2。
我国肝硬化发病高峰年龄为A.35~45岁 B.40~55岁 C.35~48岁
下列关于幼年特发性关节炎的病因说法正确的是A.病因不清 B.可能与感染有关
拜金主义、享乐主义、个人主义人生观尽管在形式上五花八门,内容上不尽一致,但它们却
B[考点]胰岛素的作用及其分泌的调节[分析]胰岛素是促进合成代谢、调节血糖浓度的主要激素。它可促进组织细胞对葡萄糖的摄取和利用,加速葡萄糖合成为糖原;促进
辛弃疾,字幼安,号稼轩,今济南遥墙人,南宋豪放派词人的著名代表。以下出自辛弃疾诗
一住店客人未付房钱即想离开旅馆去车站。旅馆服务员揪住他不让走,并打报警电话。客人
内墙面抹灰工程量按主墙间的净长乘以高度计算,不应扣除()。A.门窗洞口面积
根据《安全生产法》,下列安全生产管理机构和安全生产管理人员的配置中,正确的有(?
最新回复
(
0
)