Arguments for Animal testing 动物实验 Animals are used in important scientific research It is necessary to do medical tests on new drugs Animal testing helps to advance medical and scientific knowledge Many important medical discoveries... 详情>>
2019-03-20
Arguments for Vegetarianism 素食主义 Vegetarians do not eat foods that are produced by killing animals Many people choose a vegetarian diet for moral or health reasons A healthy diet is possible without eating meat It is unnecessary to... 详情>>
2019-03-20
Three weeks ago the government scrapped plans to build the countrys first carbon capture and storage (CCS) facility at Longannet power station in Fife in Scotland. That was a blow in the fight against climate change: if carbon dioxide can b... 详情>>
2019-03-14
Getting an erection is no problem for male ostriches – but maintaining it for more than a few seconds is a different matter. The birds may have inherited their underpowered genitalia from their dinosaur ancestors. The penis is a vital pie... 详情>>
2019-03-14
While I was reading William deBuyss new book, A Great Aridness, two massive dust storms reminiscent of the 1930s raged across the skies of Phoenix and of Lubbock, Texas. Newspapers blamed them on the current drought in the West, which is pr... 详情>>
2019-03-14
Devils Lake is where I began my career as a limnologist in 1964, studying the lakes neotenic salamanders and chironomids, or midge flies. Back then, the lake covered about 80 square kilometers, had a maximum depth of about 3 meters and held... 详情>>
2019-03-14
DURBAN, South Africa — For 17 years, officials from nearly 200 countries have gathered under the auspices of the United Nations to try to deal with one of the most vexing questions of our era — how to slow the heating of the planet. Eve... 详情>>
2019-03-14
Do you like going boating? For sure I like it. as it is a beautiful and enjoyable way to see some city or area or just enjoy the scenery that passes by. Have you ever travelled by boat? Oh, dozen times, I guess. Boating is perfect way for m... 详情>>
2019-03-14
What activities do teenagers in your country like to do? Well, they do anything that lets them enjoy their time, I guess, for example, doing shopping and hanging out with friends, watching online videos and meeting new people. Do you often... 详情>>
2019-03-14
Do your prefer rainy days or sunny days Well, I really like sunny days because they are warm and bright, which pushes me to spend time outdoors doing all sorts of activities and soaking up the sun really gives me a lot of energy and optimis... 详情>>
2019-03-14
