A. In the case of B. In case C. In case of D. In event of 相关知识点: 试题来源: 解析 A in case of sth.:假使,如果;in case:以防,万一;in event of:如果,以防;三项都不符合题意。in the cause of意为“在,,过程中”。句意:在化学变化中一种新物质生成了。反馈...
The buzz from the 2008 Asia Petrochemical Industry Conference (APIC) in Singapore last week was on the massive capacity additions in China and the Middle East coming on from late 2008 through 2012.ICIS chemical business GroupICIS chemical business...
a change (2) The dissolving of salt in water is ___. [ ] A. a physical change B. a chemical change C. hydrogen and oxygen D. breaking up (3) The change of the three states of water is ___. [ ] A. a chemical change B. different substances...
Digestion involves the mixing of food, its movement through the digestive tract, and the chemical breakdown of the large molecules of food into smaller molecules.Digestion begins in the mouth, when we chew and swallow, and is completed in the small intestine.The chemical process varies somewhat f...
It shows that the short but intense (剧烈的) exercise made the brain produce more of a chemical called “brain-derived neurotrophic factor (脑源性神经营养因子). People can remember things quickly with this chemical. 5 That’s the time when you need to sit down and start to remember ...
In terrestrial ecosystems, plant leaves provide the largest biological habitat for highly diverse microbial communities, known as the phyllosphere microbiota. However, the underlying mechanisms of host-driven assembly of these ubiquitous communities rema
<p>To solve the question regarding the enthalpy change for a chemical reaction and its relationship with internal energy, we can follow these steps:</p><p>1. <strong>Understand the Definitions</strong>: - The enthalpy change for a chemical reaction is
Recently,Rambouillet,a small historic French town,has teamed up with a company called Glowee to turn the city into a full-scale bioluminescence laboratory.The goal is to change the way in which cities use light.The company uses marine (海的) bacteria harvested from the coast o...
change. Specifically, we evaluated diversity changes and PF migrations in three dimensions. By exploring these migrations, together with environmental stressors, temperature and ocean acidity, we have provided a comprehensive overview of PF adaptive strategies in a changing ocean. Furthermore, through ...