【解析】 答案:12C 13.A. 14.B.15.C 解析:12细节理解 ,据第一段的Plant breeding()is the science ofchanging the characterstics of plants in order to produce desired ones.可 物有种的目的是生产具有优良特点的后代 选C 13 第段 food security by developing new varieties that are higher yielding(...
A home is a safe place. While most people around the world value their homes, there are many people in every country who are homeless. Some people are homeless for a short period of time because they are moving from one place to another, an...
【题】 Benefits an d Problems o f Geneti c En gineering Plant breeding is th e scien c e o f changing the characteristics o f plants in order to produ c e de sir e d ones. Genes in a plant ar e what determi n e what typ e o f characteristics it will have. Pl ant bree...
A plant may produce new flowers; man is young but once. 花有重开日,人无再少年。 A single flower does not make spring, while one hundred flowers in full blossom bring spring to the garden. 一花独放不是春,百花齐放春满园。 复合句:有至少一个可成句的SV结构和至少一个不可成句的SV结构构成...
all the other homes or buildings are producing and using. Homes can use systems intelligence to share all the energy produced and supplement power from an instant-on, utility scale natural gas power plant in the region. This is going to require a great deal of network intelligence and IoT ...
Plant breeders try to create a specific outcome of plants and potentially new plant varieties by changing the genes of the plants through breeding, which is making new plants from parents of different varieties or species. (植物育种是一门改变植物特性以产生所需特性的科学。植物中的基因是决定它将...
They used the chemical to make a modern medicine—aspirin. Today, it’s one of the world’s 53. ___(cheap) and most helpful medicines. Some of the medicines we have today come 54. ___ traditional Chinese medicine. In the third century B...
“A scourge on a planetary scale” Plastic production has grown dramatically in recent years; in fact, half of all plastics in existence have been produced in just the last two decades. Production is projected to continue growing, at about 5% annually. If current trends continue, humans wil...
A combination of plant-based compounds and extracts acts nematicidal and induces resistance against Meloidogyne incognita in tomato 文 章 导 读 Considering the stricter European regulations for chemical pesticides (e.g. abolishment of the use of chemical soil fumigation products, such as methyl bromide...
The death of Ms.Everard must be a watershed moment in generating the public will to change that reality. Fundamental to this task is an acceptance by men that they must do more to mitigate a climate of insecurity.In an interview on Tuesday, Dr Cosgrave called for a national movement to...