虚拟语气) 26:06 P54---老年人开车比年轻人开车更安全(highway公路,不是高速公路,honk at,road rage) 21:00 P55---肥皂泡代替蜜蜂授粉(pollen,yummy,drone,autonomously,beeline直线) 12:55 P56---退休以后的老太太去房车旅行(massage therapist,7-11,enlist,quilt,what-if,darin 17:50 P57---仿生树叶(...
What is pollen 来自 ResearchGate 喜欢 0 阅读量: 4 作者: PL Borst 摘要: Background: We used receiver operating characteristic (ROC) curves to determine optimal cutoff values and to evaluate the ability of ragweed, mixed grasses, mixed trees. and house-dust antigens to predict symptoms of hay...
Pollen bombs occur when trees release pollen and wind stirs it up to look like smoke from an explosion. Learn when pollen season is and how to defuse the effects.
dichotomizing the skin test reaction at 2 mm gave a sensitivity ranging from 30% for reaction to mixed grasses to 56%;, for the ragweed antigen reaction. Conclusions: Although in this older population skin test reactivities did not predict current asthma symptoms with hig...
Pollen is vital to our ecosystem but can wreak havoc on asthma, pollen allergies and hay fever. Learn everything you need to know about including pollen count, pollen levels and hay fever tips today!
Pollen is the male cells of a plant. A pollen allergy is actually caused by these cells coming into...
some of the most prominent air pollutants are greenhouse gases such as carbon dioxide and methane, which are caused by a variety of activities, and which both contribute to the greenhouse effect, and therefore to climate change. Other common atmospheric pollutants include, soot, mold, pollen, asb...
As is mentioned in the works of many researchers,the concept of East Asia came into being with the progress of the Occident and it's colonizing in the East.Whereas to understand the foundation of the identity within East Asia countries and the internal relations of their history,it is not ...
Their study found that air pollution is harmful to pollinators(传花粉者)—insects like bees and butterflies. They can't smell flowers because of the pollution.Pollinators are important, as they spread(传播) pollen(花粉) among plants with flowers.This helps the flowers grow into fruit. Without...
Pollen is the dust, usually yellow, produced by the stamens and made up of millions of microscopic granules. The flower reciprocates by putting food substances, namely nectar, a source of carbohydrates, and pollen itself, a source of protein, at the disposal of those insects. The plant, in...