B. He provides some figures. C. He analyzes causes and effects. D. He lists some unknown facts. 相关知识点: 试题来源: 解析 B 答案B 解析 推理判断题。根据第六、七段的内容可知,Yosef Schlein在文中提供了一些数字,证明了这种甜味诱饵能非常有效地杀死蚊子。反馈 收藏 ...
Sodium tetraborate is primarily used as a cleaner, but is also valued as a flame retardant, a component of porcelain and glass, a mildew remover and many other things. Even cosmetics are known to contain borax. Borax is oftenconfused with boric acid, which is a different chemical compound (...
"I'm waiting to have that one bad acid trip where I end up on skid row for the rest of my life." --Alex Papke QUOTES Retro Reg, with his cherished plate W4 NDR on a customised 1976 Bedford van, is a 73-year-old former roadie for Uriah Heep who went AWOL from their 1984 come...
Homemade slime is a fun way to explore chemistry concepts like polymers, cross-linking, states of matter, elasticity, and viscosity! When borate ions (from activators like sodium borate, borax powder, or boric acid) mix with PVA glue (polyvinyl acetate), a cross-linking chemical reaction occur...
How do you make slime? The borate ions in theslime activator(sodium borate, borax powder, or boric acid) mix with the PVA (polyvinyl acetate) glue and form this cool, stretchy substance. This is called cross-linking! The glue is a polymer of long, repeating, and identical strands or mol...
I write this letter to you am for that pair of leather shoes which buys in your shop, buys time you said the quality is the guarantee, but did not put on for a month it to go bad, this explained in the quality has the problem.[translate] ...
To many arachnophobes, large, hairy tarantulas are as bad as it gets. But in fact, tarantulas, a loose term for large, hairy spiders in the mygalomorphae suborder, are relatively harmless to humans. Most spend their time in the brush or in holes, waiting for their prey to wander along...
Boron is abundant in vegetables, nuts, legumes, and fruit and intake is associated with reduced risk of cancer and DNA damage and increased antioxidant status. Blood boric acid (BA) levels are approximately 10μM BA in men at the mean US boron intake. Treatment of DU-145 human prostate ...
Boric acid helps kill the bacteria that causes sweat to smell bad, cutting down on the odor of your body after a run. If you have skin issues, be sure to talk with your dermatologist before trying boric acid. *** When applying boric acid, gently pat it onto those sweat-prone areas ...
What’s slime science all about? The borate ions in theslime activators(sodium borate, borax powder, or boric acid) mix with the PVA (polyvinyl acetate) glue and forms this cool stretchy substance. This is called cross-linking! The glue is a polymer and is made up of long, repeating, ...