【简答题】The Risks of Cigarette Smoke Discovered in the early 1800s and named nicotianine, the oily essence now called nicotine is the main active insredient of tobacco. Nicotine, however, is only a small comp...
【简答题】The Governor General of Canada Michaelle Jean has helped to _____1_____and eat a seal in what's being ______2_______as a demonstration of ____3____ with seal hunters. Ms. Jean who is touring the Canad...