Stay away from products that downplay or completely ignore the risks of UV-C light exposure, overplay their germ-killing benefits, and that aren't tested and certified for safety (not germ-killing efficacy) by an organization, like UL. What temperature kills germs in the house? Only heat ...
3.根据“But Fleming was very careful and smart. He understood what the mold did. How lucky the humans were! ”可知答案。 4.根据“What was discovered by accident? The answer is penicillin (青霉素). It kills germs. By killing germs, it saves lives.”可知答案。 1.D;2.B;3.C;4.D....
It kills germs (细菌). By killing germs, it saves lives. Suppose you are sick. You go to a doctor. She examines you. She says you have a "staph" infection (葡萄球菌感染). She gives you some medicine. You take it. The medicine kills the staph. Soon you are well. Before penicillin...
It kills germs. By killing germs, it saves lives. Suppose you are sick. You go to a doctor. She examines you. She says you have a “staph” infection (葡萄球菌感染). She gives you some medicine. You take it. The medicine knocks out the staph. Soon you are well. Before penicillin,...
Germicidal Ultraviolet Kills Germs As shown in this table, UV-C differs from UV-A and UV-B in the size of its wavelengths. Atlantic Ultraviolet Corporation’sSTER-L-RAY®Germicidal UV lamps produce 95% of their rays at 254 nanometers, the specific wavelength that destroys the DNA structure...
It kills germs. By killing germs, it saves lives. Suppose you are sick. You go to a doctor. She examines you. She says you have a "staph" infection (葡萄球菌感染). She gives you some medicine. You take it. The medicine knocks out the staph. Soon you are well. Before penicillin, ...
It kills germs. By killing germs, it saves lives. Suppose you are sick. You go to a doctor. She examines you. She says you have a "staph" infection (葡萄球菌感染). She gives you some medicine. You take it. The medicine knocks out the staph. Soon you are well. Before penicillin, ...
It kills germs. By killing germs, it saves lives. Suppose you are sick. You go to a doctor. She examines you. She says you have a "staph" infection(葡萄球菌感染). She gives you some medicine. You take it. The medicine knocks out the staph. Soon you are well. Before penicillin, ...
include a chemical vapor that kills microorganisms. Chemical residue, sometimes left behind in such a toothbrush cleaner, can cause health problems if it gets in the mouth. There are also cleaners that use steam or heat, which can be effective in killing germs and are generally safer to use....
“Cleaning removes dirt and impurities from surfaces,” says Khanya Brann, a spokesperson for the Environmental Protection Agency (EPA). “Disinfecting kills germs.” “It’s important to ask, ‘Do I need a disinfectant?’ Often, cleaning is all that is needed.” ...