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
16
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] 【C8】
选项
答案
I
解析
名词辨析题。空格前是定冠词the,所以此处应填名词。根据上文可知接穗应插入切口中,故推测此句意为“接合处敷上生长培养基可以保持湿度并有助于生长”,故I)joint为本题答案。
转载请注明原文地址:https://tihaiku.com/zcyy/2899241.html
相关试题推荐
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butma
Whyisthecloseplantingoftreesofthesamespeciesavoidedinmodernorchard
Whyisthecloseplantingoftreesofthesamespeciesavoidedinmodernorchard
Whyisthecloseplantingoftreesofthesamespeciesavoidedinmodernorchard
随机试题
Closeyoureyes,takeadeepbreathoflavenderandcitrusoils,andallowth
A.1处 B.2处 C.3处 D.4处
在尿液中可查到的寄生虫病原体有A.晓虫卵 B.钩虫卵 C.丝虫微丝蚴 D.
颌下腺深层延长部进入口内的部位在() A.下颌舌骨肌后缘 B.颏
A.生后2周 B.2个月 C.4个月 D.8个月 E.12个月婴儿添加下
对腹部实质性脏器病变,最简便易行的检查方法是A.X线摄片 B.CT扫描
()是强制保险,商业第三者责任保险是自愿保险。 A.家庭财产保险 B.
招标采购风险是招标采购的实际结果与预期目标相偏离的()。A、范围B、程度和可能
业务质量监控内容应当包括()。A.重要证据是否采集 B.税法选用是否准确
ABS与BOT相比,其特点是()。A.操作复杂,难度大 B.项目的所有权
最新回复
(
0
)