HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
83
1 + 6 = 7
Người hút thuốc lá nhiều thường mắc các bệnh nguy hiểm về đường hô hấp. Chất gây hại chủ yếu có trong thuốc lá là
A. Mophin
B. Cafein
C. Nicotin
D. Heroin
1. As long as you keep calm, you will pass your driving test.
2.Seldom did people travel far from home years ago.
Health is something we tend to ignore when we have it. When our body is rather well, we're hardly ever aware of it. But illness can come, even when we are young. In fact, childhood has been a very vulnerable time. Many diseases attacked children in particular and people knew very little about how to prevent such illness or how to cure them one they struck. The result was that many children died. About century ago, however, scientists found out about germs, and then everything chaned The cause of many diseases was known, and cures were developed. As this medical knowledge spread the world became much safer for children. The result is that whereas a hundred years ago the average man lived for 35 years. Nowadays, in many places of the world, people can expect to live for years. And what do we except by the years 2010? Undoubtedly, medical science will continue to advance. Some people will be able to solve medical problems that are unavoidable today.
B.Tia α.
Watermelon
the dog is holding a bone in his mouth
The picture is very nice !