Electricity comes into our flat through thin wires. (C)These are connected to cables(D)___ the streets. The cables are connected to power stations. We can buy electricity(E)论包 like sweets. The chemicals inside batteries produce electricity.1. 在(A)和(D)处填入一个适当的单词:___ __...
Tar –consists of several cancer-causing chemicals. When a smoker inhales cigarette smoke, 70% of the tar remains in the lungs. Try the handkerchief test. Fill the mouth with smoke, don’t inhale, and blow the smoke through the handkerchief. There will be a sticky, brown stain on the ...
Yougaingreaterconfidenceinyourself.Also,youbecomemoreoptimisticandcalmerinthemindthanbefore.Thereareseveralreasonsforthesechanges:yourself-imageimprovesasyoustartlivingintidybeautifulrooms,andyougaindecision-makingskillsasyoucontinuetochoosebetweenwhichthingstothroworgiveawayandwhichtokeep.ThewayweletgoofthingsintheKo...
unreachabledestinationsandrechargetheirbatteries,withouteverleavingtheirhomes. Itsoundslikesciencefictionbutit?salready happening (流行的).Asvirtualtechnologyimprovesandaspeoplecontinuetodemandnewand interestingexperiences,morevirtualtourism will beexpected,bothincombination withthereal worldandinsteadofit. 12.Whatisdri...
These chemicals are also harmful and easy to burn. In some cases, batteries have caught fire on aircraft, or caused fires in waste and recycling sites.(但传统电池(如锂离子电池)中使用的化学物质可能需要数百年或数千年才能分解。这些化学物质也是有害的,容易燃烧。在某些情况下,电池在飞机上起火,或...
Chemistry plays a crucial role in the development of new medicines. Pharmaceutical companies use chemistry and chemical processes to create drugs to cure diseases or relieve symptoms. Cleaning Products Many cleaning products we use at home contain chemicals that help remove dirt and stains. Modern che...
Water is so treasure that we should try our best to protect it.But a lot of human beings don`t think so. They often pollute water. For example, many factories let their chemicals go into the rivers without treated. So the rivers are polluted. And then we drank it. The workers maybe ...
Nottingham Ningbo China (UNNC) in the single-year database and eight in the career-long database. Among these distinguished scholars is an Italian scientist, Enrico Marsili, currently Associate Professor in Green Chemicals and Energy at the China Beacons Institute of UNNC, who is included on ...
Sustainable organic fibers, such as cotton, wool, and linen, are produced using agricultural practices that minimize harmful chemicals. These biodegradable fibers have a lower environmental impact than conventional fibers and are used in clothing, textiles, and home goods. ...
are prone to leaking. Heat and age can cause leaks as can internal pressures that build inside the battery as it drains. The chemicals inside batteries release hydrogen gas as they are used, which results in pressure on the battery seals. In some cases, the batteries may simply be defective...